harddriver":1lrlw5cc said:
Zachman":1lrlw5cc said:
Gearhog":1lrlw5cc said:
I am pretty sure I have read somewhere that the low gain input bypasses a gain stage, which would make it that only one input at a time is available, just like a JCM800 with the high and low inputs.
I have to confirm this. THAT would be COOL!! Then you could just A/B switch between the two. I have to ask George.
I know it is possible if the inputs are grounded correctly and each input taps into the circuit in a certain way. I built a High gain 2203 amp with an extra 4 gain stage that I switch between the 2203 channel and High gain channel with no problems, it works great using an A/B box. Just curious if it will work on the Atomica, I see no reason why it would not if the inputs are configured correctly.
If what I have read is correct, the two inputs are in series with each other. Plugging into the low gain input breaks into the circuit, thus disabling the high gain input. In order to build your amp to function the way it does,
you would have needed to add an additional fourth preamp tube that the Atomica does not have, in order to have enough gain stages to have your inputs in parallel with each other. I would love to stand corrected, as I have an Atomica on the way, but I believe thats how it is, being that theres only three preamp tubes.