Kinescope Rejuvenator (T464E)

This utility circuit for old TV restorers was found in a Popular Electronics from November 1968.

Transistor Intercom (CB1382E )
n be assembled with BC558 transistors for low power transistors and a BD136 for the output. The...
Variable Capacitance Multiplier (CB14130E)
We found this circuit in the 1994 Linear Applications Handbook from National Semiconductor. The...
Binary Watch (CB17669E)
It is an ideal assembly to be implemented as work by students of digital electronics courses, as...