It hurts my heart to see an amp in that condition. I rescued a late '64 Bandmaster that was left in a van in the woods for years. Luckily, it wasn't rusty, but internally, it was a cobbled up mess. Mismatched power tubes with new resistors tacked over old, tacked over old again, two crumbled sockets, seized pots, etc. The saddest part was the original Jensen's had been removed from the cab, and just left on the floor of the rusted out van for the squirrels. The amp is restored now, and my most prized possession.
Anybody who works in the trades should get a tetanus shot every 3 years. This also applies to gardeners and people who dig in the soil regularly. Tetanus spores can survive dormant in soil and dust for hundreds of years until they get inside a cut or flesh wound. My wife had a patient who contracted tetanus while digging in her garden and she spent months in the hospital in a medically induced coma, on life support. She eventually woke up but suffered permanent neurological deficits.
You could strip it down to the chassis and find a local gunsmith who can "convert" the rust off of all the parts. That, or you can set up a a home rust conversion kit where you can use electrolysis to effectively leech all the rust off of the surfaces. Once the rust is converted you can brush or wipe the rest of the rust off. At least, you'd get a better idea of what the metal looks like underneath all the rust and get it back to a fairly clean state.
Just... Wow. Never seen such a legendary amplifier model fall into such disrepair. My neighbor has a '66 AB165 Bassman head "Helen" and it's a MARVELOUS piece of work. Considering its you, Lyle, your customer will end up with a working Bassman again soon!
Probably the worst case of zinc blooming I have ever seen, would recommend to wear gloves when touching to prevent zinc fever. I really love your attitude and passion digging into even such unhopeful cases and good to see/hear that there is still life in this unit. Maybe the best would be to strip it down completely, have the chassis dipped / passivated to get rid of the rust and then painted/powdercoated black...this would also distinguish this amp in his (hopefully realized) later life and fit into your Psionic Brand...and don't be shy doing that, LEo did a great job in creating it, you will do a great job in reviving it, so it's ok to leave fingerprints ;)
I washed my hands after removing the tube shields. Probably should have put on gloves - which says it all, really. Never had to wear gloves for tube shields before.
That one appears to be in pretty tough shape, but I respect how you quickly got to the “let’s see what works and what doesn’t” part. If it were mine, I’d go for the rebuild expecting that the chassis might still be kind of funky at the end. Looking forward to part 2.
" With circles and arrows explaining the evidence against him!" (a line from "Alice's Restaurant"). I hate seeing that stuff on UA-cam thumbnail photos.
Looking forward to part 2. It’ll be interesting to find out which method you go with cleaning the chassis. Good to see the old girl getting another chance.
I'm surprised to see so many comments advocating for heroic measures on the chassis. Where is the crowd of people who call you blasphemous just for changing out bad caps and resistors?
Leo and his crew, utilizing what were at the time very limited resources, crafted some of the best guitar amps for the price that have ever been available, and they were on sale to anyone able to meet the very reasonable asking price. That doesn't mean that the new owner had the slightest idea as to how to care for his purchase (or even the inclination to do so). Go figure... That said, I'm curious to watch you work your magic on this, Lyle...will stay posted. Frankly, I'm surprised that you haven't seen more of these in the Memphis area.
The owner of this amp should have donated it to you and walked away with his head hanging in shame. This amp is/was both an instrustrument and a piece of history that was neglected horribly. Hopefully he treats his dog better than this. It will be really wonderful to see you bring this fine amp back from the brink of the junkyard. A long time ago I owned a Bassman head that was just about the same year as this so it's especially difficult to see what happened to this one. Even as stupid 16 year old kid I was smart enough to take decent care of mine for the years that I owned it.
This is an exciting one for us viewers for sure! While I agree that it's unfortunate this amp was left to rust, I'd like to point out that no long ago these amps were not selling for much money $400-600 (less for one's in poor shape & less desirable circuits) and that was here in CA!...I still kick myself for not buying at least one! And this one looks like an AB165 which is not the most valuable of the black panel era...has a weird local negative feedback arrangement in the power amp. But these make great mod platforms.
To say it broke my heart to see it in this condition just doesn't come close to describing it but I am glad to see it in your hands to make it come alive.
From Rustman to Bassman! Kyle you are a miracle worker. I have to greatly admire your optimism, skill and dedication to your craft when specimens like these arrive. I was really concerned about rust on the power and output transformers in regard to rust thru shorting of the laminations. Enough can’t be said of Leo’s great works of amplified art! Slowly but surely she spoke. Masterful work as always. I look forward to part 2.
Unbelievable! I have a 1967 Bassman and matching 2-12” cabinet (equipped with Alesandro speakers), that literally looks brand new and sounds great! I cringed when I saw the amp that was brought in for repair!
😳 I agree! That should be grounds for criminal charges of abuse! BTW, I have had excellent results using finely crushed walnut shells with my sandblaster for metal like this as a start. If there’s anyone that can save this classic, it’s you Lyle!
I’ve got a buddy who has a shop restoring industrial valves (pressure systems, not tubes). He could blast this and will know good replating services, but that’s the most expensive option.
Lyle I don't know the owners situation but I've owned some gear that got rusty sitting in storage units after my divorce. Not being able to have a good air conditioned room for my gear because of the space I had to rent in south Florida. Things get rusty quickly in the salty moist air. Thank God I was able to keep it much better than this. That amp is in good hands though.
When you said, "let's spray some WD-40..." I heard let's Pray, lol Considering the look of things, I was ready to join you! Best of Luck on this one Lyle!
I love stuff like this, these are the sort of insane projects that I live to work on. Earlier this year I finished restoring a 70s Twin that was all original but had been sitting in storage for 20+ years, and at some point had both of it's speakers kicked in, and was dropped down a flight of stairs. It's in phenomenal shape now and I actually ended up keeping it as a personal amp!
Hey Lyle, I am a new viewer and love your channel. I commend your effort on this, it looks like a very daunting task. I am a young guy but have learned a lot through watching your videos. Wishing you the best luck with that one!
Very surprised, when you removed the back panel. It looked like a flood victim. Hope owner goes for the repairs. Looking forward to what the outcome will be. But first coffee.
I was thinking the same thing. Hurricane Katrina flooded that area and what can you do. Can't save everything during times like that. Life and food first.
Lyle, Ive had a lot of luck with the "purple" scotchbrite pads and Breakfree Its alleged to polish without removing metal though it will stripe the finish ie Bluing off firearms (I retired out of Phoenix PD's armory) I had Remington 870 shotguns left in the trunk of detectives cars for years that looked worse than that chassis and was able to save them. Actually "save" means I striped them, hit them with flat black rustoleum and we kept them at the armory for the recruits to use during the academy.
I own 3 bassman's from the 60's. Hopefully, this one can be restored, they're very special amps. Rust can really mess up the grounds. Poor amp! 60's Fender chassis are built like 50's Chevy's like a rock and heavy as hell!
Oh yeah, been there a few times myself Lyle. I have a 1968 Jansen Bassman (very similar amp from New Zealand) in almost identical condition ready to go on the bench. You almost exactly matched what I will be doing to that amp. A good watch. Thanks.
Wow! Until just now, I thought I had the most neglected Bassman in history. Not my neglect, I brought it back to life and gave it a good home. That amp is a survivor. I hope the owner went for it.
I had no hope for this amp when you opened it up. It's a minor miracle that it worked at all. Such a vintage amp like that never should have been left to rot away in that condition.
You just demonstrated the other reason why l love Fender amps so much, aside from the sound. 25 years in the shed in Mississippi, (insane humidity down there in the summer) exposed to the elements, and it still works after replacing a cap and some diodes. Leo Fender should get the Nobel prize for amp design. There's no question as to whether it's worth restoring, it's just a matter of how merciless the guy's other bills are, and if he has the discretionary income to cover your labor. I sure hope he can take the plunge and get it done because that's way too cool of an amp to be left in such a state of dilapidation. If it's a "Go", this will be a fun transformation to watch.
I’m restoring a sound city amp that’s been sitting in a mouldy pub back room, and I thought that was bad, but this is on another level. Side note - what’s your opinion on keeping the original mustard caps in amps? They’ve seen a LOT of moisture, so ideally I’d like to get them replaced but some people would argue that’s where the tone is. My ESR/LCR doesn’t register lower than about 10uF and most of them go into the nF range, so I can’t depend on its readouts. If replacing, NOS or substitutes? I’d rather the amp be working than original, and with electrolytics, sockets, a lot of resistors and other parts replaced, there won’t be much of the amp left!
This would be a good project for a hobbyist who could take the time to remove everything from the chassis, send it out for sandblasting and powder coating, and work on the boards (doghouse, bias, main) while waiting for the chassis. Since you will be replacing the tube sockets, that already involves unsoldering a lot of wires to get the main board out. My main concern would be the integrity of the grounds. From what I saw the front and rear panels themselves don't appear to be in bad shape. Looking forward to the next video in this series!
It’s nice to see that this bassman is getting new life, but sad owner left this head in old wood shed outback in humid conditions for so long. I’m hoping your now feeling like servicing something like a new AC15 head with upgrades/mods.
When the back cover came off and I saw the rust, my jaw literally dropped. Did this guy live near the salt water? Holy smokes. And I can hear the dismay (and maybe anger...) in your voice.
Thanks for posting this video. All vintage amps don't arrive (or leave) 100% clean and tidy, but they can certainly still work and sound great, too. Testament to their design, construction and quality of components (esp. transformers). I'd be interested in knowing your thoughts about (exterior) rust on the chassis and on transformers, too; does it really does present potential problems beyond aesthetics? I know the internet has a lot to say/scream about this, but I've restored many instrument amps and tube PAs that had some rust (not this much, thankfully) that work and sound just great. Appreciate your expertise and generosity as always. (:
I really hope this one gets saved it would make for an interesting watch & a great transformation. I just wanna strip that chassis and clean all the rust off it i dunno why i just enjoy that kind of thing. Good luck Lyle!!!
Lightbulb and Variac... thats is the way I power up things for the "smoke test". I even put up a shield, put on my CRT handling equipment and power it on remotely.
Yikes, I've had some really rusted amps come in for work, but that is bad. Around here it's usually old Ampegs that we're in a barn or basement for decades.
I've got a Selmer Treble & Bass Mk3 that was like this. Scrubbed the chassis pretty hard, as it appeared to be covered in Zinc Oxide (which I heard isn't a great thing to ingest, if you can avoid it). A great tech gave it a once over and replaced a few components but did say that the Transformers will always be an unknown, in terms of if they've really survived the corrosion, but they work right now! It's a ugly thing to be sure, but it does sound good!
Great video and shame about the condition. I have been restoring an old radio which was also left in a shed for many years with not as much corrosion but enough to create issues. I ended up using a hand held sandblaster (cheapy from eBay) but using sodium bicarbonate (baking soda) which really cleaned it up well, then I used compressed air to remove as much of the residue as possible. Then a light mist of weak phosphoric acid to both neutralise the sodium bicarbonate and treat the metal (and prevent further rust), then used a can of Contact Cleaner to completely clean the entire thing.
I live on the MS Coast. I've seen 'em this bad, usually when they've been subjected to floodwaters, _salt_ water, but I see in the comments you stated it was not flooded. That's good news. The most challenging resto I've done was a Silvertone that was in a house fire, covered in soot. This is going to be fun (for us viewers lol).
Here in Aus we have stuff called 'Penetrol' which you can paint over old rust after sanding the worst off, apparently it stabilises the rust. Don't know if it's available to you, probably better than WD40
Well, you didn't see the 68ish Princeton Reverb and 68ish Deluxe Reverb both AB763 silverface I had stored in my brother's barn (metal building on his farm) when the Northern Cali fires hit in 2017. Both of them, I had just refreshed with the new cap and plate resistor treatment. I had owned both of these amps since maybe 1980/1982. Both were modded for dual-6L6 use and one had a JBL D-120 and the other an Altec 417-8H. The Princeton was an absolute gem of an amp but they were both sweet. Why were they in storage if they were so sweet? Because I had bought a $175 Peavey ValveKing and threw another Altec speaker I had in it and it was a perfectly acceptable gig/jam amp that I didn't much care if it got beat up. Anyway, there were some buckets of used oil or hydraulic fluid back in the corner of the barn and the fire lapped right up to that corner. The heat cooked and vaporized the oils and then the vapor flashed. The poor amps were barely recognizable, cabinets falling apart, knobs melted, tubes busted, speaker cones burnt away. I kind of thought whether anything would be salvageable from the amps, and possibly there was, but they would have stunk to high heaven of burnt electronics and I'd likely have to replace every part inside. In the end, I decided to let them go to the dumpster. A fire will make many decisions for you.
I have just one issue with the manner in which Leo designed these amps. It's not particularly difficult to remove the power transformer and output transformer which would only involve unsoldering a total of about 14 wires (and it's easy for any tech to know instinctively where to reattach them), and another 5 or 6 wires or so to the filter caps, but the 7 tube sockets are mounted from the outside of the chassis and so you have to unsolder (preferable) or snip 36 connections to the 4 preamp tubes as well as 5 or 6 connections per each of the three octal sockets ( Unless there's sufficient slack in the wires for easy reconnection you may want to unsolder them). The pots and input jacks and switches on the front and rear can mostly be removed almost as a unit with minimal removal of individual wires (fuse holder and pilot light socket being exceptions), and the eyelet board would come out along with everything else, but those tube sockets tend to tether everything else in place. It doesn't matter quite as much in this case because all of those sockets are likely to have to be replaced anyway due to corrosion..... but I really would have preferred those sockets to have been mounted to the inside of the chassis.
That bassman is in brutal shape. But I know a lot of tricks about dealing with rust. Because rust is just a metal oxide, it expands greatly when adding an oxygen molecule. So a lot of rust can appear without losing too much metal. Mild acids will help clean it up, like vinegar, but be careful in that over enough time it can dissolve steel too.
Holy cow. This will definitely be a labor of love to get this back on the road. If you strip the chassis, I'd recommend a vinegar bath or maybe even some dilute pool (hydrochloric) acid. I will definitely need some sort of finish applied or that rust will return w/a vengeance
No, no. It's an old Fender and it's built like a brick shithouse. All it needs is for a guy who knows what he's doing to handle the work. If the owner either can't or won't spend the money to do it right, he should pass it on to somebody who will. It's a piece of history, it's a fine, first rate instrument, and it's never gonna lose value. There's no reason to Mickey Mouse a thing like this. It's like finding a 55 Chevy in a barn. It's no time to be lazy or cheap.
Given it was his primary amp for a time the bottom of the closet would be a better place for it to set. Given the fender amp has always had value to players this treatment is puzzling for me. For even old test equipment from the 60's get stored in a temp controlled place by me. My view is different than his on what I keep and own . Good luck there Lyle.
I stripped one similar. Used an abrasive pad polished the chassis and then clear lacquered it. Then rebuilt it. Looked awesome afterwards that was about 15 years ago.
I've made a habit of opening old things outside the shop, where the air blaster lives. Don't breathe that debris in. Lol is that a bug zapper in the background? I've got one in my shop and I've become numb to random electrical sounds that seemed to only occur when I was testing caps. 😂
Lyle, considering the likelihood of moist air being trapped inside the transformers from years of damp storage, do you put an amp in this condition into the oven at low temperature for an hour or two, or sit it in front of a sunny window in your air conditioned house for a few days, or put it over a radiator or heat vent in the winter, to dry out the transformers before powering it up?
I did a rust clean up with baking soda mixed with WD40, left it overnight, scrubbed with it a toothbrush then cleaned it off. It was really messy but it seemed to actually stop the process. The rust and pitting left stains and scars but it wasn't unsightly or gross.
Awsome video! Great job. Maybe go with diodes with larger PIV than the 1N4007's, if this was mine and not paying for work, I would give it a total overhaul.
It hurts my heart to see an amp in that condition. I rescued a late '64 Bandmaster that was left in a van in the woods for years. Luckily, it wasn't rusty, but internally, it was a cobbled up mess. Mismatched power tubes with new resistors tacked over old, tacked over old again, two crumbled sockets, seized pots, etc.
The saddest part was the original Jensen's had been removed from the cab, and just left on the floor of the rusted out van for the squirrels.
The amp is restored now, and my most prized possession.
When you drop an amp off for repair and your bill includes a tetanus shot.
🤣🤣🤣
Anybody who works in the trades should get a tetanus shot every 3 years. This also applies to gardeners and people who dig in the soil regularly. Tetanus spores can survive dormant in soil and dust for hundreds of years until they get inside a cut or flesh wound. My wife had a patient who contracted tetanus while digging in her garden and she spent months in the hospital in a medically induced coma, on life support. She eventually woke up but suffered permanent neurological deficits.
You could strip it down to the chassis and find a local gunsmith who can "convert" the rust off of all the parts. That, or you can set up a a home rust conversion kit where you can use electrolysis to effectively leech all the rust off of the surfaces. Once the rust is converted you can brush or wipe the rest of the rust off. At least, you'd get a better idea of what the metal looks like underneath all the rust and get it back to a fairly clean state.
Just... Wow. Never seen such a legendary amplifier model fall into such disrepair. My neighbor has a '66 AB165 Bassman head "Helen" and it's a MARVELOUS piece of work. Considering its you, Lyle, your customer will end up with a working Bassman again soon!
When Lyle says "I've never seen one this bad" I know we are in for something 'interesting'.
Probably the worst case of zinc blooming I have ever seen, would recommend to wear gloves when touching to prevent zinc fever.
I really love your attitude and passion digging into even such unhopeful cases and good to see/hear that there is still life in this unit.
Maybe the best would be to strip it down completely, have the chassis dipped / passivated to get rid of the rust and then painted/powdercoated black...this would also distinguish this amp in his (hopefully realized) later life and fit into your Psionic Brand...and don't be shy doing that, LEo did a great job in creating it, you will do a great job in reviving it, so it's ok to leave fingerprints ;)
I washed my hands after removing the tube shields. Probably should have put on gloves - which says it all, really. Never had to wear gloves for tube shields before.
If your not welding it you are fine
Wow, wow, wow! I doubt I’m the only one here who would LOVE to see a detailed restoration video of this.
just need a relic strat to top things off.
It’s no longer a Fender Bassman. It’s now a Fender Basement!
It’s a Fender Oh-man…
That one appears to be in pretty tough shape, but I respect how you quickly got to the “let’s see what works and what doesn’t” part. If it were mine, I’d go for the rebuild expecting that the chassis might still be kind of funky at the end. Looking forward to part 2.
Now that you have decided to jump head long into this project, I’m anxious to see the Master’s Work
It's time to get some ad revenue on part 2. "SATISFYING guitar amp restoration! You won't BELIEVE the transformation!" Good luck bud!
The one simple trick!!!!
“Negligent amp owners HATE him”
" With circles and arrows explaining the evidence against him!" (a line from "Alice's Restaurant"). I hate seeing that stuff on UA-cam thumbnail photos.
Looking forward to part 2. It’ll be interesting to find out which method you go with cleaning the chassis. Good to see the old girl getting another chance.
Man, the way I gasped when you pulled the back panel! My god!
Jolly good show ol' chap!
You're finally getting amps in the kind of condition that I get!
Strangely, I'm looking forward to part two!
I'm surprised to see so many comments advocating for heroic measures on the chassis. Where is the crowd of people who call you blasphemous just for changing out bad caps and resistors?
I would LOVE see this customer go ALL IN on this one so we can watch Lyle do his work!
I LOVE restoring stuff like this. De-rusting and cleaning it is so relaxing and satisfying.
Leo and his crew, utilizing what were at the time very limited resources, crafted some of the best guitar amps for the price that have ever been available, and they were on sale to anyone able to meet the very reasonable asking price. That doesn't mean that the new owner had the slightest idea as to how to care for his purchase (or even the inclination to do so). Go figure...
That said, I'm curious to watch you work your magic on this, Lyle...will stay posted. Frankly, I'm surprised that you haven't seen more of these in the Memphis area.
You know its pretty bad when the tube shields end up acting as sacrificial anodes. 🤣
Like on boats 🤣🤣
The owner of this amp should have donated it to you and walked away with his head hanging in shame. This amp is/was both an instrustrument and a piece of history that was neglected horribly. Hopefully he treats his dog better than this. It will be really wonderful to see you bring this fine amp back from the brink of the junkyard. A long time ago I owned a Bassman head that was just about the same year as this so it's especially difficult to see what happened to this one. Even as stupid 16 year old kid I was smart enough to take decent care of mine for the years that I owned it.
This is an exciting one for us viewers for sure! While I agree that it's unfortunate this amp was left to rust, I'd like to point out that no long ago these amps were not selling for much money $400-600 (less for one's in poor shape & less desirable circuits) and that was here in CA!...I still kick myself for not buying at least one! And this one looks like an AB165 which is not the most valuable of the black panel era...has a weird local negative feedback arrangement in the power amp. But these make great mod platforms.
I remember Bassmans and Bandmaster heads going for $150 in the early 80's. As many as you could find. And I wasn't that interested.
To say it broke my heart to see it in this condition just doesn't come close to describing it but I am glad to see it in your hands to make it come alive.
From Rustman to Bassman! Kyle you are a miracle worker. I have to greatly admire your optimism, skill and dedication to your craft when specimens like these arrive. I was really concerned about rust on the power and output transformers in regard to rust thru shorting of the laminations. Enough can’t be said of Leo’s great works of amplified art!
Slowly but surely she spoke. Masterful work as always. I look forward to part 2.
Lyle. Not Kyle
@@vadenk4433 yes you’re right, It was airbrain I guess.
Unbelievable! I have a 1967 Bassman and matching 2-12” cabinet (equipped with Alesandro speakers), that literally looks brand new and sounds great! I cringed when I saw the amp that was brought in for repair!
Looks like a nice project. Mississippi + shed + time = rust. Who’d a thought. Looking forward to part 2.
"From a garage in Mississippi..." You can't buy vibe like that!
Wow, just wow. You have material here for a 12 part restoration series. 😢
😳 I agree! That should be grounds for criminal charges of abuse! BTW, I have had excellent results using finely crushed walnut shells with my sandblaster for metal like this as a start. If there’s anyone that can save this classic, it’s you Lyle!
I’ve got a buddy who has a shop restoring industrial valves (pressure systems, not tubes). He could blast this and will know good replating services, but that’s the most expensive option.
Lyle I don't know the owners situation but I've owned some gear that got rusty sitting in storage units after my divorce. Not being able to have a good air conditioned room for my gear because of the space I had to rent in south Florida. Things get rusty quickly in the salty moist air. Thank God I was able to keep it much better than this. That amp is in good hands though.
Can’t wait to watch this whole thing, but when you popped the back panel off I thought this was recovered from the Titanic 😂
🤣🤣🤣
When you said, "let's spray some WD-40..." I heard let's Pray, lol Considering the look of things, I was ready to join you! Best of Luck on this one Lyle!
I love stuff like this, these are the sort of insane projects that I live to work on. Earlier this year I finished restoring a 70s Twin that was all original but had been sitting in storage for 20+ years, and at some point had both of it's speakers kicked in, and was dropped down a flight of stairs. It's in phenomenal shape now and I actually ended up keeping it as a personal amp!
Hey Lyle, I am a new viewer and love your channel. I commend your effort on this, it looks like a very daunting task. I am a young guy but have learned a lot through watching your videos. Wishing you the best luck with that one!
Holy cow! Looks like this is a relic pulled up from the wreck of the Titanic! Can't believe that it actually works.
Take it out back and bury it, leave a plague that says, "Rust in Pieces"..
Very surprised, when you removed the back panel. It looked like a flood victim. Hope owner goes for the repairs. Looking forward to what the outcome will be. But first coffee.
I was thinking the same thing. Hurricane Katrina flooded that area and what can you do. Can't save everything during times like that. Life and food first.
This is one of my dream amps. I hope you save it.
Lyle, Ive had a lot of luck with the "purple" scotchbrite pads and Breakfree Its alleged to polish without removing metal though it will stripe the finish ie Bluing off firearms (I retired out of Phoenix PD's armory) I had Remington 870 shotguns left in the trunk of detectives cars for years that looked worse than that chassis and was able to save them. Actually "save" means I striped them, hit them with flat black rustoleum and we kept them at the armory for the recruits to use during the academy.
I own 3 bassman's from the 60's. Hopefully, this one can be restored, they're very special amps. Rust can really mess up the grounds. Poor amp! 60's Fender chassis are built like 50's Chevy's like a rock and heavy as hell!
It reminds me of the Cadillac in Ghostbusters when Akroyd first limps it into the garage. 😂
Oh yeah, been there a few times myself Lyle. I have a 1968 Jansen Bassman (very similar amp from New Zealand) in almost identical condition ready to go on the bench. You almost exactly matched what I will be doing to that amp. A good watch. Thanks.
I don't think I've ever opened an amp and gone "WTF" quite like that.
Wow! Until just now, I thought I had the most neglected Bassman in history. Not my neglect, I brought it back to life and gave it a good home.
That amp is a survivor. I hope the owner went for it.
I had no hope for this amp when you opened it up. It's a minor miracle that it worked at all. Such a vintage amp like that never should have been left to rot away in that condition.
You just demonstrated the other reason why l love Fender amps so much, aside from the sound.
25 years in the shed in Mississippi, (insane humidity down there in the summer) exposed to the elements, and it still works after replacing a cap and some diodes. Leo Fender should get the Nobel prize for amp design.
There's no question as to whether it's worth restoring, it's just a matter of how merciless the guy's other bills are, and if he has the discretionary income to cover your labor. I sure hope he can take the plunge and get it done because that's way too cool of an amp to be left in such a state of dilapidation.
If it's a "Go", this will be a fun transformation to watch.
I’m restoring a sound city amp that’s been sitting in a mouldy pub back room, and I thought that was bad, but this is on another level.
Side note - what’s your opinion on keeping the original mustard caps in amps? They’ve seen a LOT of moisture, so ideally I’d like to get them replaced but some people would argue that’s where the tone is. My ESR/LCR doesn’t register lower than about 10uF and most of them go into the nF range, so I can’t depend on its readouts. If replacing, NOS or substitutes? I’d rather the amp be working than original, and with electrolytics, sockets, a lot of resistors and other parts replaced, there won’t be much of the amp left!
I showed this video to my dogs and when they saw the amp with back panel removed they all barked "rough! rough! rough!" 🐕
This would be a good project for a hobbyist who could take the time to remove everything from the chassis, send it out for sandblasting and powder coating, and work on the boards (doghouse, bias, main) while waiting for the chassis. Since you will be replacing the tube sockets, that already involves unsoldering a lot of wires to get the main board out. My main concern would be the integrity of the grounds.
From what I saw the front and rear panels themselves don't appear to be in bad shape. Looking forward to the next video in this series!
I don’t think a hobbyist could do this. Well, not right.
Stoked for part 2 - this could be a classic!
It’s nice to see that this bassman is getting new life, but sad owner left this head in old wood shed outback in humid conditions for so long. I’m hoping your now feeling like servicing something like a new AC15 head with upgrades/mods.
There's almost a strange beauty in just how revolting it is.
When the back cover came off and I saw the rust, my jaw literally dropped. Did this guy live near the salt water? Holy smokes. And I can hear the dismay (and maybe anger...) in your voice.
Thanks for posting this video. All vintage amps don't arrive (or leave) 100% clean and tidy, but they can certainly still work and sound great, too. Testament to their design, construction and quality of components (esp. transformers). I'd be interested in knowing your thoughts about (exterior) rust on the chassis and on transformers, too; does it really does present potential problems beyond aesthetics? I know the internet has a lot to say/scream about this, but I've restored many instrument amps and tube PAs that had some rust (not this much, thankfully) that work and sound just great. Appreciate your expertise and generosity as always. (:
These are always worth it to bring back.
I really hope this one gets saved it would make for an interesting watch & a great transformation. I just wanna strip that chassis and clean all the rust off it i dunno why i just enjoy that kind of thing. Good luck Lyle!!!
Lightbulb and Variac... thats is the way I power up things for the "smoke test". I even put up a shield, put on my CRT handling equipment and power it on remotely.
Yikes, I've had some really rusted amps come in for work, but that is bad.
Around here it's usually old Ampegs that we're in a barn or basement for decades.
I've got a Selmer Treble & Bass Mk3 that was like this. Scrubbed the chassis pretty hard, as it appeared to be covered in Zinc Oxide (which I heard isn't a great thing to ingest, if you can avoid it). A great tech gave it a once over and replaced a few components but did say that the Transformers will always be an unknown, in terms of if they've really survived the corrosion, but they work right now! It's a ugly thing to be sure, but it does sound good!
It looks like it's been under a pier for decades, not like it's been in a garage or shed
Any thought about just getting a replacement chassis? They have repros out there for $75
Great video and shame about the condition. I have been restoring an old radio which was also left in a shed for many years with not as much corrosion but enough to create issues.
I ended up using a hand held sandblaster (cheapy from eBay) but using sodium bicarbonate (baking soda) which really cleaned it up well, then I used compressed air to remove as much of the residue as possible.
Then a light mist of weak phosphoric acid to both neutralise the sodium bicarbonate and treat the metal (and prevent further rust), then used a can of Contact Cleaner to completely clean the entire thing.
I would be scared to death to plug into this.
I live on the MS Coast. I've seen 'em this bad, usually when they've been subjected to floodwaters, _salt_ water, but I see in the comments you stated it was not flooded. That's good news.
The most challenging resto I've done was a Silvertone that was in a house fire, covered in soot. This is going to be fun (for us viewers lol).
My guess is the amp may have been stored in a shed with some pool chemicals nearby.
Here in Aus we have stuff called 'Penetrol' which you can paint over old rust after sanding the worst off, apparently it stabilises the rust. Don't know if it's available to you, probably better than WD40
Yes, Dad and I use that on ancient amps and radio chassis with great success!
After the apocalypse all that will be left will be cockroaches and Fender blackfaces.
Well, you didn't see the 68ish Princeton Reverb and 68ish Deluxe Reverb both AB763 silverface I had stored in my brother's barn (metal building on his farm) when the Northern Cali fires hit in 2017. Both of them, I had just refreshed with the new cap and plate resistor treatment. I had owned both of these amps since maybe 1980/1982. Both were modded for dual-6L6 use and one had a JBL D-120 and the other an Altec 417-8H. The Princeton was an absolute gem of an amp but they were both sweet. Why were they in storage if they were so sweet? Because I had bought a $175 Peavey ValveKing and threw another Altec speaker I had in it and it was a perfectly acceptable gig/jam amp that I didn't much care if it got beat up.
Anyway, there were some buckets of used oil or hydraulic fluid back in the corner of the barn and the fire lapped right up to that corner. The heat cooked and vaporized the oils and then the vapor flashed. The poor amps were barely recognizable, cabinets falling apart, knobs melted, tubes busted, speaker cones burnt away. I kind of thought whether anything would be salvageable from the amps, and possibly there was, but they would have stunk to high heaven of burnt electronics and I'd likely have to replace every part inside. In the end, I decided to let them go to the dumpster. A fire will make many decisions for you.
Looks like it was sitting at the bottom of an ocean, becoming coral..
I have just one issue with the manner in which Leo designed these amps. It's not particularly difficult to remove the power transformer and output transformer which would only involve unsoldering a total of about 14 wires (and it's easy for any tech to know instinctively where to reattach them), and another 5 or 6 wires or so to the filter caps, but the 7 tube sockets are mounted from the outside of the chassis and so you have to unsolder (preferable) or snip 36 connections to the 4 preamp tubes as well as 5 or 6 connections per each of the three octal sockets ( Unless there's sufficient slack in the wires for easy reconnection you may want to unsolder them). The pots and input jacks and switches on the front and rear can mostly be removed almost as a unit with minimal removal of individual wires (fuse holder and pilot light socket being exceptions), and the eyelet board would come out along with everything else, but those tube sockets tend to tether everything else in place. It doesn't matter quite as much in this case because all of those sockets are likely to have to be replaced anyway due to corrosion..... but I really would have preferred those sockets to have been mounted to the inside of the chassis.
is it out of warranty ?
Oh man...this is going to be amazing!! Im here for it all!
Have you ever used Evaporust? works well. Arent these amps about $1500?
Astonishing how rugged those designs are.
remove excess, use two coats of waterbased rust converter and seal with any rattlecan clear
This makes me feel better about 'The Twin' I'm working on.
Is insect spray safe to use in an amp? I've got redback spiders in my hotrod deluxe
Probably not. Get a can of compressed air and blow them out.
Outside.
That bassman is in brutal shape. But I know a lot of tricks about dealing with rust. Because rust is just a metal oxide, it expands greatly when adding an oxygen molecule. So a lot of rust can appear without losing too much metal. Mild acids will help clean it up, like vinegar, but be careful in that over enough time it can dissolve steel too.
Holy cow. This will definitely be a labor of love to get this back on the road. If you strip the chassis, I'd recommend a vinegar bath or maybe even some dilute pool (hydrochloric) acid.
I will definitely need some sort of finish applied or that rust will return w/a vengeance
Leave all the cool "heavy relic" elements
OMG! What a sad situation for that grand old amp. I never can understand how musicians let their equipment get in such bad shape.
Evapo-rust!!! I’ve seen it do some amazing things. They even make it in a gel that can set on it for a while.
Looks like we have a candidate for wall art here. I admire your positivity.
No, no. It's an old Fender and it's built like a brick shithouse. All it needs is for a guy who knows what he's doing to handle the work. If the owner either can't or won't spend the money to do it right, he should pass it on to somebody who will.
It's a piece of history, it's a fine, first rate instrument, and it's never gonna lose value. There's no reason to Mickey Mouse a thing like this. It's like finding a 55 Chevy in a barn. It's no time to be lazy or cheap.
Acid dip that stripped chasis - just like car restoration.
I'd look at fine grit Roloc disks for the big rust spots, followed by the fine sandpaper.
Given it was his primary amp for a time the bottom of the closet would be a better place for it to set. Given the fender amp has always had value to players this treatment is puzzling for me. For even old test equipment from the 60's get stored in a temp controlled place by me. My view is different than his on what I keep and own . Good luck there Lyle.
The Rolls Royce of amps severely neglected!
Reminds me of a Fender Twin someone wired up with a two prong plug. I got a little surprise when I switched the power on.
Salvaged from the Titanic? Wow...
Before the shed, James Cameron pulled this thing off the ocean floor.
I stripped one similar. Used an abrasive pad polished the chassis and then clear lacquered it. Then rebuilt it. Looked awesome afterwards that was about 15 years ago.
I've made a habit of opening old things outside the shop, where the air blaster lives. Don't breathe that debris in. Lol is that a bug zapper in the background? I've got one in my shop and I've become numb to random electrical sounds that seemed to only occur when I was testing caps. 😂
Lyle, considering the likelihood of moist air being trapped inside the transformers from years of damp storage, do you put an amp in this condition into the oven at low temperature for an hour or two, or sit it in front of a sunny window in your air conditioned house for a few days, or put it over a radiator or heat vent in the winter, to dry out the transformers before powering it up?
Nah, this wasn’t flooded and the transformers don’t have much rust on them so I wasn’t concerned about that.
@@PsionicAudio , it looks like a condensation issue. Or perhaps something dripped on it......
Was the chassis originally zinc plated?
I usually like the looks of these crusted amps. This chassy however looks a tad too rusted. It would be nice to see how well it cleans.
The title is an instant classic. I love it.
I did a rust clean up with baking soda mixed with WD40, left it overnight, scrubbed with it a toothbrush then cleaned it off. It was really messy but it seemed to actually stop the process. The rust and pitting left stains and scars but it wasn't unsightly or gross.
Memphis? I would have thought more coastal for that amount of corrosion.
Awsome video! Great job. Maybe go with diodes with larger PIV than the 1N4007's, if this was mine and not paying for work, I would give it a total overhaul.
"The potential is there."
I see what you did! :-D