Kinescope Rejuvenator (T464E)

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

FM to MW Repeater and Converter (CB18656E)
This interesting circuit, found in a 1984 documentation, captures stations in the FM band and...
Neon and SCR half wave control (CB8157E)
This circuit is from a 1967 General Electric SCR manual. The circuit supports other SCRs depending...
Single DC Power Supply 9 and 12 V (CB20200E)
This simple low current source for the bench was found in ancient American documentation. The...