This circuit was found in a documentation from 1948. There are 5 valves with push-pull output. The source uses a transformer, and the indicated application is with turntables.
This power supply was found in a 2000 documentation. It can supply currents from 2 A to 15 V and 1...
We found this circuit in a Radio & Electronics Constructor of November 1975. The magazine no...
This circuit is designed to modulate small AM transmitters with the same power order. The circuit is...