40 kHz IR Remote Control (CB14570E)

This circuit uses unusual Motorola components. The circuit was suggested in the 1990 Linear Databook. Transistors can be replaced with equivalents.

| Clique na imagem para ampliar |

Wattmeter for transmitter (CB11587E)
This circuit is intended to measure the power of a transmitter for the citizen's band (11 meters or...
Micro Metronome (CB11580E)
This metronome can use either a high impedance phone or a crystal phone. You can use a small...
Digital Link Infrared Modulator (CB14683S)
The circuit shown in the figure modulates a low power infrared LED with TTL signals. The circuit can...