Re: [Elecraft] OT: Help me identify this capacitor?

2005-01-14 Thread Geoffrey Mackenzie-Kennedy
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 [EMAIL PROTECTED]
To: elecraft@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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Re: [Elecraft] OT: Help me identify this capacitor?

2005-01-13 Thread Mark Bayern
I'm not sure what the question is, but those look like 4500 micro-farad, 150VDC 
electrolytic caps.  What would the HP manual tell you about them?


On Fri, 14 Jan 2005 09:12:18 +1200, Richard T. Perry
[EMAIL PROTECTED] wrote:
 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:

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Re: [Elecraft] OT: Help me identify this capacitor?

2005-01-13 Thread Stuart Rohre
4500  Microfarad 150 Volts DC

-Stuart
K5KVH


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Re: [Elecraft] OT: Help me identify this capacitor?

2005-01-13 Thread W3FPR - Don Wilhelm

Richard,

That is a 4700 uF 150 volt capacitor.  You may not be able to find an exact 
replacement, but do check the mounting and the size that will fit.  You are 
seeking a replacement capacitor that will fit into the available space and 
can be properly mounted - the capacitance should be somewhere near 4700 uF, 
but the voltage may be 150 volts or higher.
Mouser does list several that may be close to what you are seeking. 
Mouser's 539-CGS200V5400 or 75-36DY472F250CD2A or 75-36DX422F250CF2A are 
possibilities I ran across - do check the physical size carefully before 
ordering, those large capacitors are quite pricy.


73,
Don W3FPR

- Original Message - 

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

I know Sprague has merged several times, but I've been trying to get some 
information about this part from my normal suppliers (Mouser, Digikey) 
with no luck...


Rather than buying the manual for $35, can someone out there help me 
decode this part number? I figure if I can find the original capacitance 
and voltage/load ratings, I can just find a more modern replacement.


Thanks in advance for the help, guys.

Richard Perry




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