This reinforcing stages from a 1960s documentation. No information is given about the transformer and the transistor admits equivalents.
May 2016 - It can be obtained from Mouser Electronics new connectors Ultra-Fit ™ series from Nikex for...
This circuit appeared in Radio Electronics in November 1984. The frequency depends primarily on...
This high impedance step suggested by an English publication can operate up to 1 MHz with 1 V rms...