27 MHz Oscillator (CB24983E)

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

Old amplifier (CB23684E)
This is a 1960s amplifier setup found in a period publication. The circuit uses a special driver...
IQS572 B000 Trackpad and Touchscreen Controller for Arduino (COM138E)
November 2016 - Azoteq IQS572-B000 ProxSense, a Toucjscreen and Trackpad controller designed for...
12V Battery Charger II (CB19200E)
This charger was found in an old Motorola manual using an SCR from this company, which, however, can...