500 Hz neon generator (CB9079E)

This circuit generates 500 Hz rectangular signals. The circuit is from old American documentation. Neon lamps are of common types.

| Clique na imagem para ampliar |

Switching Amplifier MC1776 (CB4500E)
The transistor may be any general purpose, but the integrated transistor is not common today....
Astable 555 with active cycle control (CB8002E)
Suggested by American documentation from the 90s, this circuit has separate controls for the...
20 LED voltmeter in second version (CB25458E)
This circuit is an alternative to the previous circuit. We found it in the same article in the...