This circuit has a gain of 34 dB and a good power to be used as an audio booster in cars. The configuration was found in the 1982 SGS linear integrated circuit manual.
This circuit for common analog telephones was found in March 1982 Radio Electronics magazine. It...
We found this circuit in an English publication from the 1980s. The transistor can be BC548 or...
Found in a 1967 RCA documentation, this circuit can be made with equivalent SCRs according to the...