'76 Marshall Superlead Mk II | Part 2 : This Is A Tragedy (Wait for It)
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- Опубліковано 22 тра 2021
- When bad things happen to good amps.
But I have a solution...
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Lyle: "Hope you really like amp videos, because this is going to be a long one."
Me: "Let me grab my popcorn, it's show time."
I sold some tubes and RF connectors and related parts at a hamfest to a *blind* ham radio operator who built some of his own simple equipment. The relative accompanying him to help the guy find what he needed said he could solder cleanly by painting a picture in his mind, combining hearing, time, feel and smell. I never saw any of that guy's work but I bet he soldered better than whoever butchered this Marshall.
You know these series are good when you buy popcorn specifically for this. 😎
By the time you flipped the board over, I thought I was ready for the reveal. I was not. What a nightmare! I respect your decision to stop and say “I really can’t fix this.”
19:41 LMAO!!!!!!!!!!!!!!!!!!!!!!!!! You are slowly becoming an obsession of entertainment for me. I'm not even a tech and that thing made my stomach turn. We're all shaking our heads, trust me.
I suppose the one good thing about that awful ground bus is it made getting rid of the pots that much easier.
A convenient handle, eh? Now, if they only made a potentiometer shredder/disintegrator for crappy pots....
Gotta say this really intrigues me as I want to study in depth amp (tube) repair
Wow top, that board is junked. Never seen anything so bad. But you are the man to get it done right. Waiting for next vid on this baby!
That's so bizarre it almost looks like whoever did that was trying to turn it into one of those "pad per hole" type builds where you draw the "traces" with solder/lengths of bare wire.
I was always taught that IF you need to beef up a PCB trace it should preferably be bypassed totally (cut) and replaced by an appropriate gauge wire. But IF you absolutely need to "reinforce" a trace it DEF shouldn't just be bare wire against the board. Even if they had managed to do a good soldering job (which they clearly didn't) the "reinforcement" was actually only damaging the traces, as was stated in the video. In either case that wire needs to be insulated!
You need some crime scene tape around this thing.
🤣🤣🤣very criminal what they did
As for replacing with a turret board that would be a blessing in disguise.
Who would be looking for a good reason to convert a PCB to turrets!
Sadly it would appear this amplifier was at one time a learning experience for someone.
And when I use the term "learning" I mean that in the most optimistic way.
Great walk-through, thank you.
Oh the suspense! You left us with a cliffhanger! 😬
Remember the six million dollar man? 'We can rebuild him. We have the technology. We can make him better than he was. Better, stronger, faster.' I'm hoping you can fix it with a new turret board.
If Lyle Caldwell does it, it will be assembled better than when it came off the assembly line at Marshall.
"I've got a blowout, damper three, flight call I can't hold it she's breaking up she's breaking up"!!!
A classic! Takes me back to being 12 years old in 1978 and watching this on Saturday afternoons, along with The Bionic Woman, Kung Fu, Battlestar Galactica, etc.
Today, six million would only cover a few days in the hospital. Steve Austin would be limping with a patch on his eye, and marginally employed.
I have the same amp head and right now it is literally a basket case. Excellent repair video.
Love your channel!!! I’ve learned sooo much from you.What not to do mostly hahaha.
It’s crazy what people do to these amps.They pretty much just destroy the boards.Again love your channel!!
The Cobbler really gets around! He cobbles work all the way from where Terry is from D-Lab in Michigan to Lyle in New Mexico!!
Heh.
(I'm in Memphis)
@@PsionicAudio oh is New Mexico where you visited in another video?
Was visiting my in-laws in Arizona last week. But I'm back to the land of green and humidity.
@@PsionicAudio cool! And in time to fix the Cobbler’s work. You should drop Terry a line at D-Lab that you have come across his work
@@voxpathfinder15r , ouch! Oh snap! It does kinda look like this amp was soldered with Terry's silly "Snauzaramus" soldering iron. Actually, I own an old sheet-metal soldering iron that weighs about 5 pounds and makes Terry's iron look like a pencil ---- but mine has never seen the inside of an amplifier chassis.
A turret board is the only way to go.when you flipped that board over I said to myself no way then you gave up iI said good you would loose your mind saving that.good call bro
Been trying to figure out who his voice reminds me of, then he says "Alright Chewy, I got a bad feeling about this" Spot on! lol
Can't wait for part 3. What a mess. Makes the work I have to do on a supersonic 60 pcb look simple.
YIKES...!!!
Personally am learning much from your videos sir.
Even with the limited knowledge that I still have at this point...the underside of that board just looked like a whole spool of solder was used for the connections...!!!
And it looked fried...?
Definitely looking forward to the new turret board 😉😎👍
OMG. I just saw the last part. I'm speechless.
unbelievable- So how does that phone conversation go.....???
Once again, I really enjoy watching your work. Obviously you love your work. And respect the integrity of the gear.
Whoa..! What a mess...Look forward to your attack and resolve Lyle...Great video..Ed..uk..😀
If everyone who worked on amps gave as much of a shit as you did, the world would be a better place. This one is a real nailbiter.
You hope I like amp videos? Have you noticed a comment from me in all of your recent videos? LOL! I love amp videos!
Just WOW!
Wow. Just wow. I've seen some dodgy work but this takes the cake.
It's a ghost train for electrons, maybe a futuristic version of a flea circus. I think musical electrons prefer an exciting but solidly built roller coaster : )
That board is a piece of work...
Lyle, I kinda, almost, hesitated to open the video. Two videos in one day on the same vintage amp with a "WTF" in the title? Ominous omen But like seeing a car stuck on R/R tracks 20 seconds from meeting a mile long freight train doing 60 there was no way I couldn't watch. Man, what a "goat fornication" to have been perpetrated against a classic amp.
That board is just unbelievable. I don't have any where near the knowledge or experience that you have, but I would never do something like that. If I was working on that I would ask that owner about installing a hand-wired turret board. Which I have done on a few occasions.
Wow! I hope the owner lets you do a new turret board.
That is way beyond tragic. It is bordering on criminal the way someone ruined that board. The words inept and incompetence come to mind.
you're being too kind of your description of the idiot that did this. How many more has this person done that are floating around. Doesn't bear thinking about.
@@adamhester8751 I think I got one of his masterpieces. Bought it used on ebay. Marshall jmp 2098 lead 100 solid state. At least there were only 4 small transistors involved, and some tack leads on some caps and resistors topside.
Just wow.
Wow 😯
I had that same solder sucker. It died after about ten solders into it's first project.
oh my lord!!! I didn't think it was going to be as bad as the top side :(
Shame to the tech who butchered this !
20:17...UNBELIEVABLE!!!
Some times you wonder, other times it's best not too.
Jayzus...scary shit there. Ya gotta be careful with single sided boards.
Vote 1 for turret board!
Crazy! But i hate to say ..ive seen others like this.
LOL, not all solder suckers are created equal! It's a bit sad when your desolderer DOESN'T suck!
I didn’t realize Methany repaired amps. I have never seen it so bad.
21:32...YOU BETCHER LIFESAVERS-!!!
How is this possible?? One would think if you've graduated from a battery/lightbulb soldered circuit to modifying a Marshall amp, that your soldering techniques would have improved along the way!
Granger amps sells a perfect replacement ST1 board to solve this exact problem.
Yup. But my turret board cost the same and will be mo beta.
But the Grainger is good to have as a known option.
I have a practical question. Does this mean we’re not playing Stonehenge tonight?
OMG....I just got sick looking at the 'hack job' someone did on the bottom of the PC board.
Hey Lyle, do you have a favorite source for hard-to-find metric-size hardware? Bolt Depot or some other similar online source? By the way, I really miss Sears Hardware; locally, they were the best source for oddball hardware. Having cannibalized many old USA-made electronic devices, I have lots of vintage SAE hardware, but metric parts can be a little harder to find.....
There's one good hardware store here that has a decent metric selection. Otherwise mcmaster.com
...wow
I’ve got the same solder sucker as a backup. It is trash. It always clogs.
That is brutal, as soon as you turned it over you could see it was butchered and the poor owner! 🤦♂️
Oh my god!!! Why would someone do that to a 76’??? That’s the best year.
Wowsers. Those traces are horrible. I completely agree with just getting a new board and make it amazing.
Dummies pay big bucks for these hacked vintage Marshalls . Pile of very expensive messed up old junk to me .
To be fair that sums up most vintage amps at this point. They are either played to death and there's not much left cept the iron or they are museum pieces and have no soul.
Wow... Right off the bat I figured this board was junk. Before even seeing the bottom side.
I was.... suitably apprehensive...
I have the hardest time with getting solder off w braid or wick…do you have any suggestion on what solder sucker would be ideal for a job like this?
Soldapult. But not all braids are created equal, and none of that matters if your iron isn't the right choice.
@@PsionicAudio Why continue with those solder-suckers? Get yourself an electric one, such as this one:
American HAKKO Products FR301-03/P Desoldering Tool
4.9 out of 5 stars 129 ratings
List Price: $309.97
Price: $245.00
Very sad. But nice to see the underside of a ST1. I always thought the (factory) traces were bare there. But they seem to be "sandwiched"?
No, they were bare aside from their coating. This one was butchered.
@@PsionicAudio But there is a layer of resin on both sides of the traces, isn't it?
That is the coating over the bottom of the board which has degraded.
replace everything that needs it without worrying about nostalgia, do a turret board point to point!
it will be like a new amp!
The top was bad enough. The bottom? No - no, no, no.
Would you consider in your own time slowly fixing all those traces to see if you can get that board working again? Or just not worth it? Maybe like a project sticking it into a line 6 combo amp?
No, that board is toast.
@@PsionicAudio must be annoying for lots of techs! Whenever I have a business, no matter what I do - I can never get high rolling customers and end up working within extreme budgets. I could never spend the time you do unless I valued my work at $10/hr. If I worked on that amp, I would be making quick fixes and nothing would work because of all the butchery.
I'd junk that board and rebuild the circuit on turret board. It's the only way. The amplifier will never be reliable with that board installed.
It was soldered in the dark whilst wearing boxing gloves.
What design software do you use?
DIY Layout Creator, Corel Draw 19, Express PCB, and Ltspice. Plus lots of spreadsheets I've made that do tricky math for me. And #2 pencils and a ruler for load lines...
@@PsionicAudio Thanks.
So sad. Someone ruined that wonderful amp.
Is there a certain type or brand of carbon comp resistors you use for replacing on older Marshalls or building a kit? Thought I remember you saying something about the hardwired vox models have crappy carbon comps...
I don't use CCs in Marshalls except JTM45s.
@@PsionicAudio Why the exception?
Because CCs are noisy, and you hear that noise with higher gain circuits. Later beloved higher gain Marshalls used carbon films.
Jaw -> floor!
20:30...HECK- THAT'S NOT GOOD ENOUGH TO BE "BAD"-!!!
Is a 45 yr old amp not vintage now?
It would have been had it not been butchered.
Did a meteor fell on that board? :)
The back of that board's nasty!
PARTS
What a hack job someone did!
psu caps look original
old girl is in a bad way
@18:36 When the efforts to maintain originality are no longer relevant.
Whoever F'd up that board needs to be beat.
I say burned with his own solder iron, or solder gun probably more accurate.
Maybe the worse hack job ever? You have seen a lot of stuff & it's your call.
Trash that board! It's beyond saving, put in a turret board.
This is why amp techs get a bad name, there are quite a few "techs" that have no business servicing an amp. They fuck it up for the good techs and everyone else. All I can say is, "WOW!"
I'm not even a tech but rebuilt several amps that looked and sounded awesome. This looks like a 5 year old got inside there and destroyed this beautiful piece of history. WTF is right!
@20:00 "...this amp has been butchered to the point...." from a lifetime of many amateur amp techs........or just 1 "Guitologist."
Shame.
🤢🤮
*MY GOD!*
They butchered it!
The constant criticism of others is tiresome.
Go watch something else then. I can't say anything nice about this butchery.
@@PsionicAudio I totally agree. This level of "crap-manshit" isn't called work! It's debauchery! I cringed when you peeled that board back.
Wow, that board has been butchered to the point it's not original anyway, might as well get a replacement reproduction board. I've never seen such an atrocity in my entire life. That's what you get when you let Charles Manson "fix" your amp, "Helter Skelter".