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Old 11th Oct 2019, 4:42 pm   #6
Radio Wrangler
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Location: Fife, Scotland, UK.
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Default Re: Wide band RF amp

It will have active bias control of some sort, so it is very unlikrly to appear as a simple resistive load to the power supply, so the reading on an ohmmeter may not be any sort of guide to current consumption.

Amps with depletion devices need bias voltage to turn their current down. Unbiased low voltage ohms tests look almost like a short.


David
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