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BIAS voltage must go from about -90 volts down to -50 or so settable via the BIAS Adjustment screwdriver slotted pot on top back of power supply.

Here I show the repair and mods on another Ameritron Al-80b Enjoy.

The previous owners had strange connections in the power supply. They had a blown out resistor, and the lower B+ supply was not even being powered. So I traced the war out as in this video to show you how…

I keep calling diodes capacitors. Not sure why. Tired I suppose.

Discover the ultimate guide to the top-rated power amplifiers of 2025, ranked from affordable workhorses to cost-no-object marvels. Whether you’re shopping for a budget-friendly solid-state amp or a high-end monoblock powerhouse, this list covers cutting-edge Class A, AB, D, and…

Talking on a 3 pill and a 102” whip at the jewelry store.