1969 Fender telecaster with Jim Weider Lindy Fralin Big-T pick ups into 1965 Princeton Reverb with AnalogMan original Analog delay.
BART is the Big Ass Russian Transistor, big and deep.
"New RCA" is from 1967, sounds like the RCA we have been using, but these are temperature sensitive like most Germaniums.
NPN Germanium is a British made part, with a CV number which means it was tested for military use.
We just started using the new RCA and NPN/CV in the summer of 2022.
BART are medium gain, RCA and NPN germanium CV are fairly high gain.
![](https://s2.save4k.ru/pic/YuUf_UneqZI/maxresdefault.jpg)