This circuit triggers an LM380 oscillator, producing an audio tone with light falling on the LDR. The circuit is from an old publication and the transistor could be the BC548.
Light alarm (CB22056E)
- Details
- Written by: Newton C. Braga
This circuit triggers an LM380 oscillator, producing an audio tone with light falling on the LDR. The circuit is from an old publication and the transistor could be the BC548.
