Now this is more like a VCO with a very simple one-transistor amplifier: -
It's a VCO because it has an input (Vin).
Picture highly likely to have come from the same French-speaking site as the original.
Try putting your speaker in series with the collector of the NPN transistor and make the emitter resistor fixed at about 1 kohm or greater. It'll be a little louder.
If not loud enough then use the ubiquitous LM386 audio amplifier connected to the pot's wiper as shown in the picture above.
Now this is more like a VCO with a very simple one-transistor amplifier: -
It's a VCO because it has an input (Vin).
Picture highly likely to have come from the same French-speaking site as the original.
Now this is more like a VCO with a very simple one-transistor amplifier: -
It's a VCO because it has an input (Vin).
Picture highly likely to have come from the same French-speaking site as the original.
Try putting your speaker in series with the collector of the NPN transistor and make the emitter resistor fixed at about 1 kohm or greater. It'll be a little louder.
If not loud enough then use the ubiquitous LM386 audio amplifier connected to the pot's wiper as shown in the picture above.
Now this is more like a VCO with a very simple one-transistor amplifier: -
It's a VCO because it has an input (Vin).
Picture highly likely to have come from the same French-speaking site as the original.
