Oscillator HA7210 (CB22402E)

This circuit is from an old documentation and can be used to generate signals in different frequency bands.

Visible light transmitter (CB7852E)
This modulated light transmitter was found in a 90s Popular Electronics. In place of the lamp with...
Voltage divider (CB21650E)
This precision circuit, which also functions as a bridge, was found in a February 1967 Popular...
Voltage Regulator LM3900 (CB4506E)
Other series amplifiers such as the MC3301, MC3401 and LM2900 can be used on this circuit. We found...