[Heathkit] HP-23() differences

[Fred Olsen]

For Heaven's sake, somebody just DIRECTLY ADDRESS HIS QUESTION!  This 
isn't rocket science folks.

 > Does anyone know whether or not Heathkit uprated the power
 > transformers in their later model HP-23(*)?

Yes, Ken, Heath changed the power transformers a couple of times.  While 
all versions from HP-23 through PS-23 are spec'ed the same for the B+ 
and B++, in actuality they aren't the same.  Heath lied.  The HP-23 used 
a 54-143 power transformer and is the only one having the B++ secondary 
rated at 268VAC no load on the schematic.  The HP-23A used a 54-198, I 
don't have the part number at hand for the HP-23B, and the HP-23C and 
PS-23 used the 54-807.  All except the HP-23 are rated on the skiz at 
282VAC no load for the B++ secondary.

Aside: That spec sheet of all models in the series does no good because 
it says they're all the same.  They aren't!

Aside: They ALL have a voltage doubler!  So what?

Fred
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