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Author Topic: pyramid power supply  (Read 193 times)
KP2BH
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Posts: 141




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« on: September 22, 2004, 07:52:10 AM »

hello fellows:
Iam looking foward to buy a power supply for my ft920. do pyramid power supply are good source?any good or bad experience with them.let me know.

kp2bh  jimmy
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W8VVE
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Posts: 187




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« Reply #1 on: September 22, 2004, 08:47:08 AM »

Most will probably recommend Astron....and I agree.
Sam W8VVE
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K7JBQ
Member

Posts: 80




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« Reply #2 on: September 22, 2004, 09:49:37 AM »

Agree about the Astron. Just check the reviews here on eHam.

73,
Bill
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N6AJR
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Posts: 9887




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« Reply #3 on: September 22, 2004, 11:11:42 AM »

I have used pyramid and they do just fine.. make sure the fins have access to unblocked air to dump heat , don't bury under a pile of stuff, they need to circulate air to cool.. ( all are this way)
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K1CJS
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Posts: 5855




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« Reply #4 on: September 22, 2004, 04:42:24 PM »

I use two Pyramid brand power supplies, amd I've never had a problem with them.  Most of us use Astron supplies, but Pyramid are just as good....as long as they're taken care of and not overloaded.  That goes for any brand!
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AA4PB
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Posts: 12667




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« Reply #5 on: September 23, 2004, 07:27:05 PM »

I've had a Pyramid 35A supply on the test bench for many years with never a problem.

The thing to look for is that some supplies do not have a crowbar over-voltage protection circuit. If a pass transistor fails it will apply 28V or so to your radio which is not a good thing. The Pyramid and Astron supplies that I've looked at all have the protection circuit.
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