HP-23 recap

[Glen Zook]

You can do as Stu suggested, or, there is plenty of
room under the chassis to mount the capacitors by
soldering the pins directly to a terminal strips, etc.
 When you mount them under the chassis, it does look a
bit better than when you support them from the
existing clips.

These new capacitors are only 25 mm diameter by 30 mm
long (or about 1 inch in diameter by 1 3/16 inches
long).  They have the volume of about 1/6 the
original.

You can "cover" the original mounting holes with
either a plate of aluminum or by getting a piece of
"perf" board from Radio Shack for about $2 and trim it
to fit.

Your method works.  It just costs about three times as
much.  Neither method is "restoring" since the power
supply is not returned to ORIGINAL configuration.
Thus, either method can be used to REPAIR the HP-23
series.  By the way, this also works in the SB-400 and
SB-401 which use an internal power supply that is
similar in design to the HP-23 series.

The original question was about replacing the
capacitors in two HP-23 power supplies.  If eight
capacitors are purchased at $4.23 that comes to a cost
of $33.85.  Ten capacitors can be purchased at a total
cost of $34.50.  I would go the extra 38 cents and get
10 capacitors!

That makes the cost of repairing one HP-23 $17.50 as
opposed to $40.16 (four capacitors at $9.21 plus four
brackets at $.83).  Both of these do not figure in the
shipping costs which will be identical since neither
makes the minimum weight.  Also, there will be two
extra capacitors for another project.  If they were to
do three HP-23 and get twelve of the capacitors at
$3.45 each, then the cost of doing these three would
only be $13.80 total.  That is a whole lot cheaper
than $40.16.  In fact, this is a little over 34
percent as much.

Anyway, I think that we have answered the original
question as to a possible source of replacement
capacitors for the HP-23 series power supplies!

Glen, K9STH

--- "Charles W. Morehouse" <w4gbw at brevard.net> wrote:

THATS FINE, HOW ARE YOU GOING TO MOUNT THEM?


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