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The Adventures of Professor Ventura

Circuit Bench

Commercial 4-Transistor Radio (CB18321E)
This is a commercial radio circuit for 1967 AM. It was found in Japanese documentation. The...
TLC556 Pulse Generator (CB26052E)
Using a dual 555 CMOS this very useful circuit on the bench was found in the July 1998 Electronics Now...
Tunnel Diode Fequency Converter (CB13336E)
We found this circuit in a 70's factory documentation. The circuit formed L1 / L2 and C1 must be...