A scope may not have the resolution to see any. Ask someone with a SDR and
built in spectrum analyzer to check the signal over a wide bandwidth such as
DC to daylight.
Carl
KM1H
--------------------------------------------------
From: <donroden@hiwaay.net>
Sent: Wednesday, January 28, 2015 12:00 PM
To: <Amps@contesting.com>
Subject: [Amps] Astron Power Supplies
Hang a scope on the output.
look for ripple or oscillations.
Don W4DNR
Quoting Charles Compton <compton3@centurytel.net>:
On both of my Astrons, I noticed that the output transistors ran
extremely
hot. Check to make sure that the thermal compound on the transistors and
associated insulators is not dried up. Properly apply fresh compound to
ensure adequate heat transfer to the chassis. More is not better and
thermal
runaway is not your friend. This could be your root failure cause.
73
Charlie
K4BQP
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