We found this circuit in the Linear Applications Handbook of the 1994 National Semiconductor. The transistor must be a high voltage type and the LM3900 power supply must be symmetrical.
This circuit converts sinusoidal signals into squares and can be powered by voltages from 1.5 to 5...
Found in a 1969 Electronic Design, this circuit is intended to power a load up to 300 mA....
This amplifier was published in the July 1961 Radio Electronics magazine. It announced the release of...