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Extreme 50 or 60 Hz hum suppressor, now made with 2 x PNP transistor, BD 140 (schematic & demo)

radiofun232 RADIOFUN232 · JAN 17, 2026

This YouTube video has 699 views and was published Jan 17, 2026 on radiofun232. That is 0.8x the channel's average views.

Extreme 50 or 60 Hz hum suppressor, now made with 2 x PNP transistor, BD 140 (schematic & demo) ▸ WATCH ON YOUTUBE
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