Amp tinkerers and people who aren't afraid of 700 volts or so in here....

Moderators: Slowy, Capt. Black

User avatar
BY Single coil
#751545
Peavey vk212 - popped it apart to do a couple simple mods you'd struggle to see.

Brightness mod - remove one capacitor (clipped one leg and moved it)
Gain boost mod - remove one resistor (clipped as above)
Made the delay in switching channels go away - dropped the value of one resistor from about a zillion to 510ish k.

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User avatar
BY Molly
#754948
Thought it was time to resurrect this thread and get Strummer's new Bassman clone in here. First this. Couple of shots of the Dr Z EZG (Super Reverb derived). Taken from YouTube. Amp hasn't reached me yet. Do like the nice, clean layout you find in a Dr Z.

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And here's Strummer's Bassman:

StrummersOfThunder wrote:Image

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Looks like some sensible quiet grounding with a marshal style floating ground thingy. I did the same in.my 6g15 stand alone clone to good effect .
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http://i.imgur.com/zD5yefs.jpg

User avatar
BY Molly
#754961
Olderama wrote:Less wires = less tone?


Probably = just one tone. In this case the SRV El Mocambo tone (that's what it was built to do). What more could any self-respecting Stratophile need?
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BY Molly
#762390
Will do the Friedman when I get a mo. This is the Bad Cat.

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God is in the detail as, I think, they say.
User avatar
BY chur
#764101
Taking a look at a mates Marshall 6100LM 30th Anniversary as its been sounding a touch crap but was tempted to move on. This thing makes my eyes water internally.. think I'll stick to JCM800/JMP designs.. The darker tube was seemingly the culprit, but couldn't help myself but to nose inside for any cap swelling..

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20171112_193701.jpg


20171112_093742.jpg
User avatar
BY druz15
#764103
Molly wrote:
hamo wrote:I wish I understood what I was looking at when I look at this thread.


Most usually about $2400 worth of parts soldered together to make a $3,000 amp. :-)


fixed
User avatar
BY AiRdAd
#764149
chur wrote:Taking a look at a mates Marshall 6100LM 30th Anniversary as its been sounding a touch crap but was tempted to move on. This thing makes my eyes water internally.. think I'll stick to JCM800/JMP designs.. The darker tube was seemingly the culprit, but couldn't help myself but to nose inside for any cap swelling..

20171112_193645.jpg


20171112_193701.jpg


20171112_093742.jpg


there is a heck of a lot going on with those amps
User avatar
BY chur
#764151
AiRdAd wrote:
chur wrote:Taking a look at a mates Marshall 6100LM 30th Anniversary as its been sounding a touch crap but was tempted to move on. This thing makes my eyes water internally.. think I'll stick to JCM800/JMP designs.. The darker tube was seemingly the culprit, but couldn't help myself but to nose inside for any cap swelling..

20171112_193645.jpg


20171112_193701.jpg


20171112_093742.jpg


there is a heck of a lot going on with those amps


Yer.. too many IC's for my liking... if it went really wrong I'd hate to own it.
BY NippleWrestler
#764165
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1997 Mesa Boogie Dual Rectifier Tremoverb board.

So much stuff in there but all decent brands like the F&T, Philips, Sprague caps and Switchcraft jacks. Good to see they don't screw around and on a personal note I really like it when amp builders line up all the filter caps the same way.

There's a section to the left of this where the switches live but it's pretty standard stuff.
User avatar
BY jeremyb
#764196
Some serious porn here, katana guts:

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User avatar
BY Bg
#764210
now that looks a bit like the inside of a bluesbreaker!
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