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Re: Possible PA low output problem.

 

John,

For sure it is something wrong with your measurement tools.

You cannot put out 24W when your input power is less than 20W.

I suspect your multimeter is not measuring DC current very well.?Try the indirect measurement method, using a small resistor in series with the power line and measure the voltage across it. 1 Ohm 5W resistor ?shall give you decent voltage reading.

I did not measure my current at higher voltage, but a decent estimate is at least 2A.

The PA is a linear amplifier working in AB class. The efficiency of it is 50% at best.

Best regards,


--
Ion

VA3NOI
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