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 is from a 1967 documentation. It consists of a sensor for memories used at the time....
Can be used as a shield, this old American documentation circuit offers digitally selected...
This circuit was found in old documentation, but it adapts perfectly to modern applications with...