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.
With this circuit (shield) we can control a load from 500 mA to 1 A, depending on the transistor, using a...
This circuit can supply currents up to 1 A from alternating input voltages. The circuit uses...
This circuit can be used as part of a Vox project or as an input shield for a microcontroller that...