Tubular transistor end-stage screened against stray inductance, comprising amplifier of low stray, annular core transformers, with fore- and end-stage tubes and output

摘要

The end-stage comprises amplifier with low stray annular core transformers (1). Fore- and end stage tubes (3) and output transmitters (2) are located outside of magnetically screened housing (4).Thus they are screened against interference effects of transformers. Preferably, the housing is of magnetically conductive steel with Cu plating.