XTAL Oscillator 7400 (CB22420E)

This crystal fundamental frequency oscillator can operate at frequencies up to a few tens of megahertz. The circuit must be powered with 5 V.

SCS timer (CB21411E)
This circuit for timing small loads was found in a 1964 General Electric documentation....
Field Intensity Meter (CB12832E)
This circuit, for bands above 15 MHz, was found in an Argentine publication from the 1970s. The L1...
Minuteria Up to 5 hours (CB18913E)
The 2 uF capacitor used in this circuit must be of excellent quality with a minimum of leakage to...