I've been playing guitar since I was 6 and have just discovered the world of D-style amps, after playing for 38 years on almost everything else. I have been playing around modding my own amps as a hobby, but I can't design them or anything advanced, although I do have some education in electronics, not used in decades as I became a surgeon insted. My first experience with this fine forum was 15 years ago when I installed a VVR in a Matchless DC30 and Gabriel Voxer, but now I've rediscovered this forum after obtaining a an ODS, Robben Ford Modern Eagle version from Ceriatone. It is a #102 clone, slightly darker voiced.
I love the amp, but would like to try to mod it in the direction of the Amplified Nation ODR just to ease that itch. If I'm not mistanken, the AN ODR is a clone of the #060. And if I'm not missing much from reading the schematics of the #060 found here (through from 2012, outdated??), the preamp structure of the #102 and #060 is more or less the same except some different values on capacitors & resistors. The big difference would be the reverb section with three more tubes, but if you turn the reverb send all the way down, this part of the signal path is bypassed and goes to a mixer valve. When the reverb is all the way down, the only addition in the #060s signal path compared to the #102 is the triode on the mixer valve (not sure if there is a LNFB there too?) between the preamp and FX loop, which I think would contribute to more harmonics? The recovery stage on a Dumbleator in the FX loop of the #102 could probably compensate some for that missing tube?
My #102 is high plate (220 k) & Skyliner. The #060 has 160 on the V1 plate, according to the schematic I found here. Is this regarded as a high or low plate?
How much difference is there between the AN ODR and the #060? Is there an updated schematic of the #060?
Any thoughts on this? I realize that the difference between the #102 and AN ODR is more than the schematics alone, and there's an art in selecting the right components, thoughtful layout and probably much more than I can think of
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