126 MHz Logic Probe (CB21195E)

This logic probe was found in a Popular Electronics from the 90s. The circuit is TTL and must be powered with 5V.

| Clique na imagem para ampliar |

Astable MC3301 (CB6355E)
This circuit was suggested by Motorola in 1980s documentation. The circuit employs an operational of...
100 kHz Calibrator (CB3923E)
This simple calibration circuit consists of a crystal oscillator that generates an accurate 100 kHz...
Quadrature Generator for Transistor and SCR Testing (CB3807E)
Quadrature Generator for Transistor and SCR Testing This circuit was found in US 1980s...