The figure shows how to drive a load up to 300 mA with an LM3900. The transistor can be a BD136. We found this setting in the 1994 National Semiconductor Linear Applications Handbook.
This circuit has a frequency range of 30 Hz to 100 kHz with an output signal of 1 Vrms. We found...
Found in a 90s Popular Electronics, this circuit is based on a uA739, an unusual component today....
The figure shows an application of the LM377 in a small inverting stereo amplifier with output...