This power supply for model railroad was found in a February 1961 Radio Electronics Magazine. The transistor must be mounted on a heatsink and the transformer is a 1,5A secondary winding.
This configuration (using a logic gate with TTL compatible output) uses an amplifier transistor to obtain...
Placed near a common receiver, this oscillator is intended to generate a beating signal to receive...
Published in the September 1973 issue of Radio Electronics magazine, this diagram may be useful to...