This circuit is from a 1969 General Electric manual. The SCR may be the TIC106. Similar circuits from other sources are found on this website.
This circuit is used in the analog part of the telephone lines. The same circuit can directly...
In this project, from a Japanese magazine of 1973, only one channel of a stereo amplifier of 20 W...
Molex Sealed Industrial USB Solutions achieve superior signal integrity in harsh factory and...