This car audio amplifier was found in a Popular Electronics Hobbyist Handbook from the 1990s. The circuit uses the TDA2004 to boost the car radio output of cars of the time.
This pocket radio for the medium wave band was found in the Radio Electronics magazine of January...
Other operational amplifiers of the same series can be used on this circuit found in Motorola's Linear...
This is the normal configuration of the LM12 as a high voltage amplifier. The LM12 consists of a...