I want to see some guts of a Mark Cameron modded Marshall.

  • Thread starter Thread starter jasonP
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Digital Jams":1cq246rn said:
Is it hard or soft this goop stuff? If it was soft I would have no idea how to remove it not that I would want to anyways.

Yes I am sure Mark would fix things up right :thumbsup:

Scott, yeah it is soft and rubbery feeling. Im guessing its silicone.. which is one of the harder to remove types!

But yeah, if you know the circuit exactly then you can just remove the goop/gut it completely and re-do it.
 
sah5150":3dyt7ep5 said:
How easy is that goop to remove if something gets screwed up underneath it that requires repair? Inquiring minds want to know!!

Steve

It can be done, with the right equipment, but it is extremely time consuming and painstaking work. Most techs wouldn't bother because they don't have the time to spend on it, but if you found a good tech who had the time it would be very expensive.

Here's an old Marshall being de-gooped.

http://www.timeelect.com/hackmarshall.htm
 
With all due respect to everyone's opinion, I've played, seen and/or owned modded amps from nearly a dozen different guys since the late 80's. I can't remember anyone who modded amps back then that didn't use silicon or epoxy to cover the mods. Mods used to be a closely guarded trade secret so to speak. Most not only gooped them up, but also scrapped off identifying marks on the componants like the strips on the resistors to obscure the values. Anyone who gets a amp modded and then is surprised by the goop probably isn't asking enough questions before he makes the plunge. Back in the day, we cared more for the tone than the vintage values anyway. Just my two cents.
 
SeaDog":eh24jn98 said:
With all due respect to everyone's opinion, I've played, seen and/or owned modded amps from nearly a dozen different guys since the late 80's. I can't remember anyone who modded amps back then that didn't use silicon or epoxy to cover the mods. Mods used to be a closely guarded trade secret so to speak. Most not only gooped them up, but also scrapped off identifying marks on the componants like the strips on the resistors to obscure the values. Anyone who gets a amp modded and then is surprised by the goop probably isn't asking enough questions before he makes the plunge. Back in the day, we cared more for the tone than the vintage values anyway. Just my two cents.

Well... Jose Arredondo didn't put any goop on my amps and while I care about tone, I also want the amp to be easily repaired if something goes wrong. I certainly understand the modders dilemna with maintaining intellectual property, however, anyone who is motivated enough to actually steal the design and use it commercially will not be detered by the goop anyway... Waste of time, IMO...

Steve
 
sah5150":2ux5x52t said:
SeaDog":2ux5x52t said:
With all due respect to everyone's opinion, I've played, seen and/or owned modded amps from nearly a dozen different guys since the late 80's. I can't remember anyone who modded amps back then that didn't use silicon or epoxy to cover the mods. Mods used to be a closely guarded trade secret so to speak. Most not only gooped them up, but also scrapped off identifying marks on the componants like the strips on the resistors to obscure the values. Anyone who gets a amp modded and then is surprised by the goop probably isn't asking enough questions before he makes the plunge. Back in the day, we cared more for the tone than the vintage values anyway. Just my two cents.

Well... Jose Arredondo didn't put any goop on my amps and while I care about tone, I also want the amp to be easily repaired if something goes wrong. I certainly understand the modders dilemna with maintaining intellectual property, however, anyone who is motivated enough to actually steal the design and use it commercially will not be detered by the goop anyway... Waste of time, IMO...

Steve


I agree. I suppose the modders try to hide their work because they don't want the expense of going after a circuit-thief in court, especially across state lines, though I doubt many of these gooping modders have patents on their circuits. But like you said, if someone is determined enough to start up a business selling mods then they are probably enterprising enough to reverse engineer a gooped mod.

I see both sides and while I'd prefer that collectable vintage gear not be modded or gooped if it's your amp then it's your choice. My only complaint is that some techs might not be making the goop extremely clear to the customer and the customer might not know the effects of the goop. But this also goes for drilling new chassis holes, etc...the customer should always be informed, and if the tech is reputable I would expect him to advise a customer not to hack a collectable vintage piece anyway.

Soldano, Splawn, Cameron, etc...all have the right idea, they went into business making their own amps instead of modding Marshalls forever. And from the amps I've seen/heard/played these guys build a better made and better sounding amp than the ones they were modding anyway.

Dumble used to goop his stuff, as did Mike Fuller and countless other folks.
 
O.k....finally...I removed the goop on an older Cameron Jose Mod and this was what I found :

sulawesi6786.JPG




This is with the goop removed from a newer version so obviously something changed:

r_anatomie_009.gif

The entrails of a turtle
(Picture : Soptom)

:D
 
* velcro-fly *":hbfq87lf said:
O.k....finally...I removed the goop on an older Cameron Jose Mod and this was what I found :

sulawesi6786.JPG




This is with the goop removed from a newer version so obviously something changed:

r_anatomie_009.gif

The entrails of a turtle
(Picture : Soptom)

:D
LMFAO!!! :lol: :LOL: :lol: :LOL:
 
never seen an inside of an amp look like that.. does it have a lot of gain?
 
jasonP":2cgxvnvd said:
never seen an inside of an amp look like that.. does it have a lot of gain?

Not sure, but this one has plenty! Please clone away :lol: :LOL:
Ampboard1.jpg
 
MOAAH":168dm8zn said:
jasonP":168dm8zn said:
How about just post pics of modded marshalls?
Is this one?
DSC02852sized.jpg

That masking tape don't look stock :yes:


That's a true point-to-point amp. What most people call PTP amps aren't. PTP never looks as clean as a good turret board.
 
Odin":st7n8rkn said:
Dumble used to goop his stuff,
Sometimes yes, sometimes no.
i.e.
MVCdumble-003s.jpg

He sure did not stick to international color coding.
 
Odin":3uugun71 said:
MOAAH":3uugun71 said:
jasonP":3uugun71 said:
How about just post pics of modded marshalls?
Is this one?
DSC02852sized.jpg

That masking tape don't look stock :yes:


That's a true point-to-point amp. What most people call PTP amps aren't. PTP never looks as clean as a good turret board.
Yep. This is one of mine:
VM022.jpg
 
MOAAH":29vfhcul said:
jasonP":29vfhcul said:
How about just post pics of modded marshalls?
Is this one?
DSC02852sized.jpg

That masking tape don't look stock :yes:

That's my other amp ROFL!!! Im thinking about working on it instead of the Lafayette LA-55.
 
tweed":dxgfby54 said:
That's my other amp ROFL!!! Im thinking about working on it instead of the Lafayette LA-55.
Really, so is it a Gibson? Someone posted that years ago on HC(back in the day). I kept it as a prime example of what true PTP looks like, but I never was quite sure what make it was.

Incidentally, that first pic I posted in this thread, that is a Lafayette too. Tons of gain in there, RF amplifiers need many stages, LOL.

Anywho, you could do both, or if you lose interest with the PA let me know. Maybe I'll take it off your hands, if the price is right.

Rock on,
R.
 
I have no idea who the maker is, there are no identifying marks on it anywhere. I would love to get it up and running it sounded killer before it popped. Im sure you can see all the white residue next to the tape. Whatever that thing is its toast now lol. Cardboard resistor perhaps?
 
MOAAH":flwgzv64 said:
tweed":flwgzv64 said:
Cardboard resistor perhaps?

Paper cap, more likely :thumbsup:

Can you read any values on it?

Gotcha, have no idea what it's called lol. This amp has lots of room inside which is nice, compared to the other one. Would be great to make it into a super reverb type ciruit or vox circuit maybe. I could use an amp with a killer warm clean tone.

I'll look for the values. I have some other pics and may have the info in one of them.
 
tweed":2jcnwudc said:
MOAAH":2jcnwudc said:
tweed":2jcnwudc said:
Cardboard resistor perhaps?

Paper cap, more likely :thumbsup:

Can you read any values on it?

Gotcha, have no idea what it's called lol. This amp has lots of room inside which is nice, compared to the other one. Would be great to make it into a super reverb type ciruit or vox circuit maybe. I could use an amp with a killer warm clean tone.

I'll look for the values. I have some other pics and may have the info in one of them.

My advice, stay away from reverb circuits until you get more familiar with noise and where it comes from. I'm guessing it has 6L6s poweramp and 6sn7s in the pre.

If you're not happy with the original tone, you could redo it to an original Fender Delux or Bassman. May as well stick to octal based preamp tubes.

Look forward to your next pics!
 
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