Teleprinter power supply (CB8847E)

Originally created to power an 80's RTTY printer, this circuit can be used in other applications. The circuit is from an Amateur radio of the time.

| Clique na imagem para ampliar |

Humidity Detector (CB17513E)
This circuit consists of a simplified Hartley oscillator that changes the frequency according to...
Lights On Reminder (CB12637E)
This circuit activates the horn if the door is opened with the headlights on. The circuit is for...
Product Detector (CB15943E)
This linear characteristic circuit is based on a junction field effect transistor. The FI and BFO...