ultrasonic receiver for headphones | Elektor Magazine
News | Advanced Audio Microphones
microporium
The AKG C 12 and the Telefunken ELA M 250, M 251
AKG C12 VR och Telefunken ELA M250/251
Classic Schematics
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