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Author Topic: astron vs-35m power supply trouble  (Read 2427 times)
AD4U
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Posts: 2157




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« Reply #15 on: January 12, 2014, 02:36:47 PM »

Perhaps the meter adjustment pot in the Astron is noisy or loose.


I have around 5 Astron PS.  On each and every one I have to periodically clean and re-adjust the metering pots.  The meters do not read directly.  I have precision 1 ohm and 0.5 ohm 250 watt resistors that I use to check PS current draw.  That makes it easy to know how much exactly  current a PS is delivering  without setting up an accurate current reading circuit.  A good DVM will tell you the exact output voltage.

Clean and adjust the two metering pots so the meters read correctly.

Dick  AD4U
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N3DT
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Posts: 524




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« Reply #16 on: January 12, 2014, 03:26:20 PM »

100W with 4A draw, maybe in SSB mode and you can't see the instantaneous current draw.  I'd like to have a transceiver that will produce 100W CW with 4A @13.8VDC.  I could get rid of all these high current power supplies I have.
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