I think that was KEA album. RTL was actually a stock 2203 with a rat in front and G12-65 speakers.Wasn't RTL a Jose Mod with a Rat in front to boost?
No need to change the resistor, just tack a 10k resistor on top to get 5k.Changing V1b from 10k to 6.8k or 4.7k will get you a little more gain without changing the overall tone much if any..
Boss Sd-1I would love to have just a tad more tight gain coming from my JMP 2203 '83. Maybe a slightly different EQ.
I aim for RTL sound. Can anyone point me in the direction?
what about a Hotmod addon?I would love to have just a tad more tight gain coming from my JMP 2203 '83. Maybe a slightly different EQ.
I aim for RTL sound. Can anyone point me in the direction?
Yes, It changes the way the first stage is loaded.^ The gain pot mod you mention sounds like it’s changing the impedance? It’s looks like it’s turning the 1meg pot into 180k?
TS9Boss Sd-1
These are all great suggestions, the first coupling cap can do a lot for you. If it's a 22n, try a 2.2n or 4.7n. Also, what tap are you using for NFB? NFB tap can change a lot and you could also do a variable NFB with a potI believe rtl was a tube screamer in front of a stock marshall jmp.... they had just had the jose amps stolen and were trying to find a replacement, I just read about this somewhere. The sm7b mic on the cab was a pretty big part of the sound imo to !
As far as simple mods, you could throw a .68 uf cap over v2a cathode for a little more bite , you could change the first coupling cap to a smaller value to tighten up the amp , piggy back a 10k resistor and .47 cap on v1a cathode 10k ... you could do a fixed resonance mod to like Friedman... so many options...