Hi Volker,
thanks for the link and the included technical data of the power transformer (backwards calculations are a bit sketchy).
@110WChris:
I have read it and if i compare the pictures following the link that Volker posted above... to me they both look similar...
Whatever, i ordered 2 of the Chinese ones according to the Link of Volker, we will see...
Maybe we could make a comparison here...
The Gain resistor value of [Rb] could be fixed @47k in case of +1db steps up to +44db gain, it was just a question
of understanding and maybe interesting for some other builders...
Next is to figure out the front panel design, that I would like to have... knobs, switches, lights... some fun here ;D
ROCK-ON!