Posted by
Lyn WØLEN on
Apr 17, 2020; 8:52pm
URL: http://elecraft.85.s1.nabble.com/Electrolytic-Capacitor-failure-tp7659760p7659799.html
Currently (no pun intended) I am using an Astron VS35M which gives me a linear, fully variable (both voltage and max current) metered supply. It's a workhorse and the size is perfect for my shack.
I also have a decent switching 35 amp supply as a backup.
73
Lyn, W0LEN
-----Original Message-----
From:
[hidden email] [mailto:
[hidden email]] On Behalf Of Bob McGraw K4TAX
Sent: Friday, April 17, 2020 2:50 PM
To:
[hidden email]
Subject: Re: [Elecraft] Electrolytic Capacitor failure
All of my supplies have both voltage and current meters and they are in
a position I can see them when I turn them on. With supplies which do
not have meters, when one turns them on, you never know in advance and
get what they deliver. In my case, I observe the meters BEFORE turning
on a radio. On more than one occasion this has saved a radio due to a
power supply regulation failure. Dumping 24 to 32 volts into a $3000
radios is not very pretty. Oh yes, the supplies do have OVP, Over
Voltage Protection, but I've seen this fail as well and I've repaired
several supplies where this did fail. And one doesn't know it has
failed until the voltage goes to maximum value. Its too late then to
find out the OVP circuit has failed. A meter would have prevented
radio and accessory equipment damage.
73
Bob, K4TAX
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