This circuit was obtained from a 1967 GE SCR manual. It is intended for controlling relays responding to a decrease or increase in temperature.
This circuit was found in a Popular Electronics from the 90s. The frequency depends on the...
50 This transistorized guitar amplifier was featured in the November 1968 issue of Radio...
This circuit, from a 1987 documentation, is for the CB3817E transmitter. Connected to the handset...