144 MHz Frequency Doubler (CB4675E)

This circuit is from an old American amateur radio manual. The circuit shows how to use a Varicap on a high power frequency doubler circuit.

| Clique na imagem para ampliar |

Motor reversal with DC control (CB8952E)
Found in 1965s General Electric documentation, this circuit is intended for the control of servos...
Simple lie detector (CB7844E)
This circuit was found in a 1991’s PE Hobbyst Handbook. The circuit is based on altering the sound...
From Smart Lights to the Dark Side of Home Automation
Home automation systems are becoming smarter and more connected with the launch of every new...