With this circuit, using a single control voltage, you can increase the brightness of the lamp while the brightness of another decreases. The circuit applies only to incandescent lamps.
This 1965 Philips circuit uses old company transistors like the BFY51 and BFY50. The circuit is...
This circuit with an operational amplifier was found in the magazine Radio Electronics of...
This trigger produces an output pulse when zeroing the input signal. The circuit is from a...