This 6W amplifier with 4 tubes was indicated in an American documentation from 1947 to operate with recorders. The circuit uses a source with a transformer.
The circuit shown in the figure was found in a 1974 publication. The field effect transistor may...
August 2017 - Mouser Electronics already has to supply the new Darlington MAAM-011206 Broadband...
We found this alarm circuit in a Radio Electronics magazine from July 1990. The power transistor must be...