Jim, before you go too far with this, there's a fellow on the newsgroups that wants to swap an AC-4 for an HP-23!
"Dave McCombs <[EMAIL PROTECTED]>
Dave McCombs wrote:
> Have a very nice AC-4 supply in the cover that I want to swap even for a
> Heathkit HP-23 (A,B, or C) Would like the HP-23 to have the top cover also,
> but I'm open.
>
> "
I have no connection with Mr McCombs whatsoever, just happened to see this on r.r.a.boatanchors.
GL. regards,
Mahlon - K4OQ
Mahlon Haunschild wrote:
Well three thoughts come to mind:
- The resistor won't do your HV voltage regulation any good.
- Despite the resistor, the HV will rise to circa 750 VDC during SSB voice waveform valleys, which will be difficult to set the bias for
- The HP-23 doesn't have enough current capacity for a TR-any, if that's what you had in mind.
regards,
Mahlon - K4OQ
Jim DiMauro wrote:
Hi All:
I have a Heathkit HP-23 supply that I want to use as a substitute for the AC-4. Other than dropping the HV from 800 VDC to 650 VDC, are there any considerations I should know about? I plan to simply use a dropping resistor in series with the 800 VDC line. Is there a better way? Anyone out there using the HP-23?
Jim WA2MER
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