This circuit was found in the 1992 Radio Electronics Handbook. It is used to test VCR recording heads. It can also be used for other purposes.
The circuit is from a Radio Electronics magazine from October 1987. The Triac must be equipped with a...
The integrated circuit used is not common today and the voltage gain is unitary. The circuit is...
This source with two symmetrical output voltages was found in 90s Radio Electronics. The 22 V...