First from scratch mic build, AKG C12/414 capsule, JFET and transformed circuit based on u87 PCB. Never soldered a circuit board before but now I'm hooked. I could build 6 of these
The AKG C 12 and the Telefunken ELA M 250, M 251
Hoping to find a schematic of the 251E that I can read. - PRW