[Heathkit] HP23 PS Chokes...

[Edward B Richards]

Hi Steve;

My manual for the HP-23 PS shows L1 (choke) as part no. 46-56 and the
schematic shows it as a 6 Hy choke. I suspect all HP-23 chokes are the
same and interchangeable. Good luck

73, Ed Richards, K6UUZ
Simi Valley, California, 93065
Home of Air Force 1 Pavilion
okes are the same and interchangable. Good luck.

On Tue, 8 Nov 2005 08:25:50 -0700 "Steve Banks" <sbanks2571 at att.net>
writes:
> Hi Everyone,
> 
> I have a question about two different HP23 power supply chokes in my 
> junk
> box.
> 
> One of them, Heath P/N 46-22, measures 103.2 ohms DC across its two 
> leads.
> The second one, Heath P/N 46-56, measures 94.6 ohms DC.  I believe 
> they came
> from different vintage HP23 supplies.  Both of these chokes cleaned 
> up very
> well.  
> 
> I'm planning on using one or the other of them for rebuilding an 
> HP23 supply
> using a new HP23R PCB card with choke regulation.
> 
> My only HP23 schematic and manual (for an HP23A) indicates that P/N 
> 46-22 is
> a 6 Hy choke used in filtering the 350/275V bus.  Does anyone happen 
> to know
> if my second choke, P/N 46-56, is the equivalent of P/N 46-22 in 
> terms of
> its 6 Hy inductance?  
> 
> If they're equivalent chokes, I'll probably flip a coin to decide 
> which one
> to wire into the rebuilt supply.
> 
> Thanks in advance for any comments.
> 
> Steve Banks
> K0PQ