Found in 90's Electronic Engineering this circuit can be used to measure phase angles between two signals from 0 to 180 degrees. The components used admit modern equivalents.
We found this circuit in an old Argentine publication from the 1970s. The transistor can be the...
This very low power amplifier is designed by Amperex for hearing aids. It is based on TAA370 which is...
This 50 kHz oscillator makes use of a CTUJ, complementary unijunction transistor. The circuit is...