Toroidal transformer power supply (CB22530E)

We found this voltage inverter circuit in a Radio Electronics from January 1958. No information was given about the transformer winding.

Cat Meowing (CB12623E)
The critical components of this project from a 1978 publication are the transformers, which can be...
Control for miniature railroad (CB8761E)
Found in a 90s Popular Electronics, this circuit can power a miniature railroad with voltages of 15...
AH1389 Hall Effect Unipolar Switch
August 2017 - Mouser Electronics is now offering the Diodes Incorporated AH1389 Hall Single-pole...