This circuit was obtained from a 1977 FET manual. The circuit measures inductances using a signal generator as a reference. The range is from 60 uH to 60 000 H. The FET can be a BF245.
This common configuration source with diode bridge and single winding transformer was found in a...
This circuit simulates a low-level siren and can be supplied with voltages from 5 to 15 V....
Found in Signalite documentation from the 1960s, this circuit generates ladder pulses. The circuit...