So, I will try to make myself understood with my limited English to see if my idea could work. The spot for an extra preamp tube on the trinity chassis got me thinking. I would like to build a sIII kit and add an ef86 Vajra preamp, like a pseudo tree channel amp, having separate inputs for each "channel" but sharing the same volume, tone control and phase inverter of the normal channel since the values and wiring are the same at this part of the amp design. Could this be done? Would I have to make a switch before the volume pot or just "join the wires"?
I have only built a Tweed Super and a cj11 with 6l6's before, I can read schematic, but I have limited knowledge in electronics.
Thanks in advance for your help.
Jonatan Wagner
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