27 MHz Oscillator (CB24983E)

This tunnel diode oscillator was found in July 1986, Radio Electronics magazine. Note the low supply voltage.

Audio Level Meter (CB19278E)
The integrated circuit used in this configuration is not very common today. However, more modern...
Switched Positive Regulator 723 (CB5462E)
The basis of this circuit is the 723 integrated circuit, not very common today. We obtained this...
EZP Q series of metallized polypropylene capacitors - Panasonic
EZP-Q metallized polypropylene capacitors from Panasonic's can be purchased from Mouser...