Found in a 90s Linear Technology documentation, this circuit is intended for powering cold cathode fluorescent lamps. The circuit has an input voltage from 4.5 to 20 V.
This small audio amplifier is based on the LM390 with a minimum of external components. We found it...
The integrated circuit used is not common today. The circuit presents a bass boost according to...
This circuit provides two outputs of the same signal. One with the original phase and the other...