I remember another '76 had those metal nuts on plastic output jacks. Saw but didn't mention in the video the missing choke mounting hardware. Was in a rush, forgot to do the prettier transitions
Get rid of those plastic jacks. Get some Switchcraft jacks in there. Can't believe there would be plastic output jacks in a guitar amp. One good push to the side, and they're done for.
@@cjay2 Something to consider - the plastic jacks are probably isolating the speaker output from chassis ground. It's possible to do that with metal jacks, but I think you need the fiber washers and a bigger hole. I doubt if the speaker output is really floating, but it may play into their grounding plan.
I'm a novice amp tech/builder just learning the craft as I go. I'm really glad I found your channel. I've been going on a deep dive through your vids. So good. Anyway I'm also a Marshall fanboy so this is very interesting. Looking forward to more.
Love your comments about tone being in the hands. Like people fretting about the exact number of nicks on their Les Paul thinking it will make them sound like Jimmy Page. Do you ever look at one of these and just throw up your hands and say no thanks ?!? You’re a good man, man !
What an absolute train wreck! Someday I would love a video of your tube testing method and what modern day tubes you like. I just repaired a Twin Reverb and one of the Apex matched Tung-Sol 6L6’s lasted 20 minutes. Grrrr. Love your videos. Truly the best guitar amp repair videos on UA-cam by a wide margin.
I hate JJ power tubes. I know I am in the minority. I feel like the plastic in the bases is inferior. I have seen many with the locator pin broken off or I have finished it off pulling it out of the amp. Tubes with missing locator pins go straight in the trash. I have seen what happens when you put them in wrong…..
I went and looked on tha back of my marshall head after you mentioned the metal washer on the back. My marshall has all plastic like nuts on the back..
I love how you explained about tone being in the hands, but also the importance of your amp doing exactly what you want so you don’t even have to think about it. That is EXACTLY what I have been seeking for many years now. An amp that I don’t even have to think about so I can just play my guitar. A plexi-like Psionic Audio amp perhaps? Hmm.....
Oh it breaks my heart to see crap like this. It's pretty much a daily occurrence here. Almost everything that comes in has been destroyed be previous people putting their mitts where they shouldn't.
What happened to that poor old Marshall should at least be a class 5 misdemeanor in all 50 states. The more I look at the paused video, the more botched up it gets.
I've got a '77 (w/ cascaded inputs) I'll be getting into for dirty ppts/Jack's and a re- cap several issues, so I'll definitely be following along... thanks for blazing the trail ;-)
The 'black box' definitely is an instrument, an extension of the player, but one to sit in the background and do the job it's meant to do. I just got off a 5 1/2 hour guitar recording session at my studio for a project. The guitar play was using the 5150III 50W EL34 tube amp head into a 4x12 with Celestion V30's. Kind of a typical setup but it was the way the guitar player used it that was the 'sauce', if you know what I'm sayin'. Between the amp's touch response and how the player used it, I had all kinds of fun in the control room. The results were perfect.
Tone is like anything that is handmade or created for art purposes, the tools are just a means to the end, but you would never get to the end without the vision of the artists imagination.
FWIW my 1976 50 watt Mk II Master does not have metal nuts on the speaker jacks. It has plastic nuts with a "chromed" accent ring so you can locate the holes in the dark I guess.
Instead of a solvent to clean that faceplate, try Nevr-Dull, polishing wadding. Its the only thing we've found that won't take the silk- screening off of old McIntosh hifi gear. Its worth a try on the Marshall.
@@brianhanson9367 , yup; I was never in the navy but we used it on our own small boats when I was a kid. They have apparently changed the formula a little bit and it's not quite as effective as it used to be but it still works. I know from experience that vintage McIntosh audio equipment cannot be cleaned with windex or most other cleaners because the silk screening will wipe right off in seconds, but Nevr-Dull is safe to use.
Wow, there were a lot of hackers in the 70s and 80s... it was a time before we really started thinking about what these amps were going to be worth in the future.
what's really sad is that master volume heads are so plentiful that whoever had this done probably could have picked one up for whatever he paid a tech to create this nightmare. not to mention the master volume amps just don't sound as good - before anyone calls me a corksniffer, i own a 2203, it is a great amp but it is more harsh and gainy than the superlead, 4 holer amps are more true to the tone of the guitar plugged into the input of the amp.
I love your videos very informative. I only have one problem, when I watch on my IPhone the way you pronounce the letter s is so freaking loud. I have the same problem with the way I say the letter s so I don’t know if there is something you can do about it mic wise or what. Not trying to be a douche it’s just extremely loud compared to the rest of your speaking.
I've tried D-esser plugins, they don't help. It's worse on my phone - the vids with a real mic are much better. The honest truth is I had a cavity behind a filling on a top front tooth that nuked that tooth, and I was about to get the tooth replaced, then Covid happened. Now that I have my second dose of the vaccine I can get that tooth replaced. Finally. Anyway, that missing top tooth is why I ssssound sssso hissssy. Sssssorry, hate it mysssssself.
@@PsionicAudio it’s all good. Ever since I got braces a few years ago I’ve had an issue with the whistling ssss so I’m really in tune to the sound now. At 48 years old I’m not getting it fixed now. Again, great videos keep ‘em coming.
That Parmeko choke is not original at all. The choke should be 3.3Hy or 3.8Hy. Those old Bulgin connectors are also a fire or an electrical shock waiting to happen. The rest of that amp was mostly someone's bloody aftermarket hatchet job. I hate grounding pots that way. Try changing a single pot later on. A lot of soldering iron burns on wires and caps and someone probably burned some fingers too. That soldering iron went all kinds of places it shouldn't have gone, didn't it? The more I look..... Oh dear!
“A really good amplifier lets you forget about the amplifier and just create.” Never a truer word spoken, sir.
It really bugs me that I misspelled "initial" in the video. Just a typo, but grr.
I remember another '76 had those metal nuts on plastic output jacks. Saw but didn't mention in the video the missing choke mounting hardware. Was in a rush, forgot to do the prettier transitions
Get rid of those plastic jacks. Get some Switchcraft jacks in there. Can't believe there would be plastic output jacks in a guitar amp. One good push to the side, and they're done for.
@@cjay2 Something to consider - the plastic jacks are probably isolating the speaker output from chassis ground. It's possible to do that with metal jacks, but I think you need the fiber washers and a bigger hole. I doubt if the speaker output is really floating, but it may play into their grounding plan.
My Wife Rescues Dogs, for you it is amplifiers!
Thank You for your Service.
Ohhh, THE HUMANITY! I can only think of The Hindenburg burning when I see all of those wayward soldering iron burns in EVERYTHING.
I agree with you about Tone. Whatever amp I plug into.. I sound like me. Low gain or high gain. Just like a mellow me or an excited me.
Agreed , perversely awesome ! Thanks for this great channel ! Can't wait for Part 2
I'm a novice amp tech/builder just learning the craft as I go. I'm really glad I found your channel. I've been going on a deep dive through your vids. So good. Anyway I'm also a Marshall fanboy so this is very interesting. Looking forward to more.
Love your comments about tone being in the hands. Like people fretting about the exact number of nicks on their Les Paul thinking it will make them sound like Jimmy Page.
Do you ever look at one of these and just throw up your hands and say no thanks ?!?
You’re a good man, man !
What an absolute train wreck! Someday I would love a video of your tube testing method and what modern day tubes you like. I just repaired a Twin Reverb and one of the Apex matched Tung-Sol 6L6’s lasted 20 minutes. Grrrr. Love your videos. Truly the best guitar amp repair videos on UA-cam by a wide margin.
Thanks so much!
Dude that sucks. I have never had issues with the russian stuff. JJs on the other hand....
I hate JJ power tubes. I know I am in the minority. I feel like the plastic in the bases is inferior. I have seen many with the locator pin broken off or I have finished it off pulling it out of the amp. Tubes with missing locator pins go straight in the trash. I have seen what happens when you put them in wrong…..
I went and looked on tha back of my marshall head after you mentioned the metal washer on the back. My marshall has all plastic like nuts on the back..
looking forward to this re-build
I love how you explained about tone being in the hands, but also the importance of your amp doing exactly what you want so you don’t even have to think about it. That is EXACTLY what I have been seeking for many years now. An amp that I don’t even have to think about so I can just play my guitar. A plexi-like Psionic Audio amp perhaps? Hmm.....
Try a Session SG-75, if you can find one. 👍
@@NotMarkKnopfler Aren’t those solid state amps?
Oh it breaks my heart to see crap like this.
It's pretty much a daily occurrence here.
Almost everything that comes in has been destroyed be previous people putting their mitts where they shouldn't.
What happened to that poor old Marshall should at least be a class 5 misdemeanor in all 50 states. The more I look at the paused video, the more botched up it gets.
I've got a '77 (w/ cascaded inputs) I'll be getting into for dirty ppts/Jack's and a re- cap several issues, so I'll definitely be following along... thanks for blazing the trail ;-)
A good amp tech is worth his weight in gold. Several KILL players will need him.
The 'black box' definitely is an instrument, an extension of the player, but one to sit in the background and do the job it's meant to do. I just got off a 5 1/2 hour guitar recording session at my studio for a project. The guitar play was using the 5150III 50W EL34 tube amp head into a 4x12 with Celestion V30's. Kind of a typical setup but it was the way the guitar player used it that was the 'sauce', if you know what I'm sayin'. Between the amp's touch response and how the player used it, I had all kinds of fun in the control room. The results were perfect.
Scary looking guts..! Good luck with the repair.. Watching carefully..Ed..UK..😀
demented woody wodpecker made me lol
Tone is like anything that is handmade or created for art purposes, the tools are just a means to the end, but you would never get to the end without the vision of the artists imagination.
Coconut oil has been surprisingly effective as a very mild solvent for tape residue.
FWIW my 1976 50 watt Mk II Master does not have metal nuts on the speaker jacks. It has plastic nuts with a "chromed" accent ring so you can locate the holes in the dark I guess.
Instead of a solvent to clean that faceplate, try Nevr-Dull, polishing wadding. Its the only thing we've found that won't take the silk- screening off of old McIntosh hifi gear. Its worth a try on the Marshall.
Used to use that stuff in the Navy for polishing brightwork (brass)
@@brianhanson9367 , yup; I was never in the navy but we used it on our own small boats when I was a kid. They have apparently changed the formula a little bit and it's not quite as effective as it used to be but it still works. I know from experience that vintage McIntosh audio equipment cannot be cleaned with windex or most other cleaners because the silk screening will wipe right off in seconds, but Nevr-Dull is safe to use.
Naphtha or Kerosene for the tape residue.
Wow, there were a lot of hackers in the 70s and 80s... it was a time before we really started thinking about what these amps were going to be worth in the future.
It still happens every day, mate, not just in the 70's and 80's.
what's really sad is that master volume heads are so plentiful that whoever had this done probably could have picked one up for whatever he paid a tech to create this nightmare. not to mention the master volume amps just don't sound as good - before anyone calls me a corksniffer, i own a 2203, it is a great amp but it is more harsh and gainy than the superlead, 4 holer amps are more true to the tone of the guitar plugged into the input of the amp.
Sticker residue is easy with zippo lighter fluid. I think if you're careful using q tips the silk sceening should be o.k.
Makes me sad to see how this poor thing was hacked on. This amp deserves better
Just you wait for part two.. It gets worse.
Did a bomb go off in that amp?
This is great for binge watching. Demented Woody Woodpecker comment was appropriate. I’m disgusted by how people treat their equipment.
I love your videos very informative. I only have one problem, when I watch on my IPhone the way you pronounce the letter s is so freaking loud. I have the same problem with the way I say the letter s so I don’t know if there is something you can do about it mic wise or what. Not trying to be a douche it’s just extremely loud compared to the rest of your speaking.
I've tried D-esser plugins, they don't help. It's worse on my phone - the vids with a real mic are much better.
The honest truth is I had a cavity behind a filling on a top front tooth that nuked that tooth, and I was about to get the tooth replaced, then Covid happened.
Now that I have my second dose of the vaccine I can get that tooth replaced.
Finally.
Anyway, that missing top tooth is why I ssssound sssso hissssy. Sssssorry, hate it mysssssself.
@@PsionicAudio it’s all good. Ever since I got braces a few years ago I’ve had an issue with the whistling ssss so I’m really in tune to the sound now. At 48 years old I’m not getting it fixed now. Again, great videos keep ‘em coming.
Biased right up, yeah?
wow. thats a lot of "wtf" going on there
That Parmeko choke is not original at all. The choke should be 3.3Hy or 3.8Hy. Those old Bulgin connectors are also a fire or an electrical shock waiting to happen. The rest of that amp was mostly someone's bloody aftermarket hatchet job. I hate grounding pots that way. Try changing a single pot later on. A lot of soldering iron burns on wires and caps and someone probably burned some fingers too. That soldering iron went all kinds of places it shouldn't have gone, didn't it? The more I look..... Oh dear!
Poorly done work is job security for professionals.
Oh mein Gott
"what horrors wait beneath?".... Classic
Where do these amps come from? Good grief, step away from the soldering iron....
That lead dress and general layout is driving me mad....must be my OCD.
Like watching a slow motion horror show 🤯🤮💩