The Amp Garage

bepone wrote: ↑Sun Sep 17, 2023 9:31 pm hm.. there is some other "error"...lead dress? bad solder joint?

if 715 are on treble remove it (2nF must be poliester), and put some cheap ceramic to deep switch (390pf)

10nF after v1b should be ok

The treble cap is a mustard, deep switch though is orange drop... will change that

Strat - Money solo FET input preamp volume 10 bright off mid off jazz mode Treble 10 middle 4 bass 3 drive 10 volume 10 master 2 presence 7 bright off Money solo 2 normal input same settings as above 3rd clip normal same settings mid switch up 4th clip clean, same settings mid down rock down bright ...

actually i have Mustards inside, i have some 715 in there, but much of the preamp side is mustards...
resistors are NOS made in england carbon comps

I'll try changing the 47nf in v1b to 10nf... that seems logical it would help

i think the LNFB is useless, overpowering low bass, i would add it in the power amp circuit, like depth control in the soldano. the dumble circuit is really finicky, but i noticed in the last few days low gain is better and then using fet as boost or a boost upfront now i just have to fix the annoyi...

did another clip right now with LNFB off, semi hollow 335, gain trimmer set pretty low clip start as Master 1.5 then Master at around 4 then at 6 last 2 clips are FET input any improvement? I think taking the gain trimmer much lower (half) got rid of the fuzzy bass, i never run it this low usually, ...

There seems to some buzzy tubby low midrange thing going on with the tone, interacts with the higher midrange in the 1.5-2.5k range and makes things a tad brittle. Overdrive emphasizes it apparently to my ears . HRM tends to emphasize that more aggressive frequency response imo and from others test...

bepone, your description of the sound is excatly what i think of the sound, i've been trying for a long while to solve it...

when you mean bad lead dress you mean how the wires cross each other inside the chassis?

Did some recordings, one witha strat,two with a tele

Sny thoughts about the tone?
Also replaced 250pf snubbers with 47pf

I guess you are right
Minus the attenuator 470k and cold clipper

Hadn't thought of that...

Yeah exactly, a 2203 is a much different animal I think

yeah i've seen that one, but what about keeping the 2nd OD stage the 120k 1k8/1uf or even converting it to a 100k 820 and adding a CF ?

making it kind of high gain-ish with 4 gain stages + CF

or that would be too much ?

Curious as to the the ripper circuit, which sounds interesting, is it a standard dumble topology, with him tonestack and a cathode follower before the tonestack ? With one unused trident?
If not, can a hrm be built with another tube to be used as a CF before the hrm tonestack ?

is there a schematic and not a layout for the 2nd gen ? been peaking my interest since that #22 demo

I would use uf4007, no real reason for 1n4007 anymore unless you want it vintage correct

I really dislike the guy, guitars also have lots pf fret buzz, but the tone with the LP is perfect dumble I think

https://youtu.be/BjmcczaRAZ4

Would this be considered 2nd generation?