FIELD: electrical engineering.
SUBSTANCE: invention relates to amplifiers. To realise the technical result, an amplifying system is proposed, based on vacuum tubes, containing: a first power supply circuit; a first load amplification circuit based on vacuum tubes; a second power supply circuit and a second load amplification circuit based on vacuum tubes. The first grounding end does not have a direct electrical connection with the second grounding end, and each of the first grounding end and the second grounding end is electrically connected with the corresponding alternating current voltage grounding of the mains power supply via a resistor with a wire jumper and a zero resistance.
EFFECT: reduction in the residual noise.
15 cl, 15 dwg
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