We found this circuit in a 1960 Radioarama magazine. The instrument tests common general-purpose transistors indicating their gain on a moving coil instrument. The loop serves to adjust the circuit.
Using an integrated circuit that was available at the time, this circuit produces animal sounds such...
Disabling this circuit from a 2002 documentation can only be done by pressing 4 keys in a correct...
Global Authorized Distributor Now Provides 21 Local Branches Across Three Continents June 3, 2015...