This circuit was found in a National Semiconductor Handbook from the 1990s. The integrated circuit used is from the time and the circuit is stereo.
This circuit was found in an Electronics World of 1968. It can be applied to any modern triac and...
This circuit is from a documentation from the 70s. The transistors are types of germanium of the...
Obtained from a 1996 documentation, this circuit uses common components and has a voltage gain of 200...