Voice Activated Switch (CB5982E)

This 80's documentation circuit includes an amplifier of the era. Used integrated circuits are uncommon today but can be used equivalents.

| Clique na imagem para ampliar |

AP431S Adjustable Shunt Regulators - Diodes Incorporated
September 2017 - Mouser Electronics already has the AP431S adjustable regulator from Diodes...
RF Probe (CB5873E)
This circuit is from the 80's, making use of components of the time. What the circuit does is...
VCO With the 567 (CB4599E)
Using a PLL this circuit can generate signals of up to 500 kHz which is basically determined by the...