[Elecraft] OT: Help me identify this capacitor?
Geoffrey Mackenzie-Kennedy
gmk at gm4esd.fsworld.co.uk
Fri Jan 14 06:46:12 EST 2005
Top of head thoughts,
Compulytic = Computer Grade Electrolytic ?
32D - sounds like a type reference ?
4500 - 150 DC = 4500 uF 150V DC ? Strange though as 4700 uF is the usual
value and 100V or 200V are the usual nearby voltage ratings.
7230L - maybe the part number ?
0180-1839 - maybe the HP stock number ?
My guess is that Sprague supplied these as "specials" to a HP spec. This
sort of thing happened a lot when I was with RCA.
73 and good luck,
Geoff. GM4ESD
----- Original Message -----
From: "Richard T. Perry" <perryrt at hotmail.com>
To: <elecraft at mailman.qth.net>
Sent: Thursday, January 13, 2005 9:12 PM
Subject: [Elecraft] OT: Help me identify this capacitor?
> Since this list is a font of everything electronic, can y'all help me with
> this?
>
> I've got a HP DC power supply (6443B) that's worked great for a long time.
I
> DON'T have a service manual for it (of course). Recently, when I turn this
> thing on, the voltage comes up, then drops off slowly (this is under no
load
> conditions) over 20-30 seconds, then blows the C/B.
>
> I think I've troubleshot the problem down to the supply side capacitors.
> They're massive can-types. About 3" in diameter by 6" tall. On the side is
> the following information:
>
> Sprague
> Compulytic
> 32D
> 4500-150 DC
> 7230 L
> 0180-1839
>
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