This circuit is indicated for supplying the CB17495E transmitter. The BD135 must have a small heat radiator and the zener may eventually have a higher voltage.
Found in American documentation from the 1970s, this circuit employs an integrated circuit from...
This low current source without a transformer is intended for applications where insulation is not...
This circuit is from the 1990 Motorola Linear Databook, which can be developed with more modern...