I started to build a two channel RCA tube preamp from the BC-2B schematic. I am using LL1680 outputs and I have LL7905s, jensens and a LL1636 to try as inputs.
I seem to remember a thread about this circuits power supply voltage. I did a search and did not find what I was looking for.
I think the ps B+ was questioned being marked 363V at the site http://www.larryseyer.com/rca.htm. I THINK PRR stated that older tube consoles ran at about 250V. Has anyone built this and tried the different voltages?
I seem to remember a thread about this circuits power supply voltage. I did a search and did not find what I was looking for.
I think the ps B+ was questioned being marked 363V at the site http://www.larryseyer.com/rca.htm. I THINK PRR stated that older tube consoles ran at about 250V. Has anyone built this and tried the different voltages?