The circuit shown is from the 1977 GE semiconductor manual. More modern equivalent SCRs can be used. R1 must be wire type.
This simple transistor tester was found in a Japanese magazine in 1967. It tests general purpose...
Short duration pulses or "clicks" can be generated with the circuit seen in the figure. The...
A 25 mVpp applied to the input of this circuit produces in the output a 1 Vpp signal. The...