IR remote control emitter (CB7020E)

This circuit was found in 1980's Radio Electronics. The circuit produces a 1500 Hz modulate 35 kHz. The components used are still common.

| Clique na imagem para ampliar |

600 ohm Line Driver (CB6224E)
This circuit was found in an 80's Electronic Engineering. The circuit uses operatives of the time...
30 mm Optocoupler (CB14668E)
The selected circuit was obtained in a Texas Instruments opto-electronics manual. The transistors can be...
Noise Limiter (CB12005E)
In short wave receivers or in the recovery of signals from scratched discs this circuit can be...