Metal Detector (CB21929E)

This two-transistor metal finder was found in a Raytheon manual from the 1950s. The transistors are germanium from the time.

MCx High Power Resistors - Vishay
September 2017 - Mouser Electronics is supplying the entire line of high power MCx resistors from...
Charger & Regulated Adapter Nicad (CB1212E)
This charger for currents up to 100 mA was found in a 1980 publication. The transistor could be...
Courtesy Light (CB20445E)
The purpose of this circuit is to keep the courtesy light of a car on for an additional time given...