[Drake] Using Heathkit HP-23B with T4X?

[doc at kd4e.com]

Bob, your e-mail is bouncing ...

I just tried to send this direct with the hp-23 schematic.


I just looked at the HP-23 schematic.

Is that a voltage tripler, from 268 to 820 no load?

What if it were changed to a doubler?


>> You can build a 650-700 volt HV supply with 120/240 volt isolation
>> transformer.
>>
>> 240 * 1.414 = 340
>> 340 * 2 = 680
>>
>> You can buy these transformers from Allied, Mouser, and DigiKey.
>>
>> They are a viable solution to the problem.
>>
>> Bob Macklin
>> K5MYJ
>> Seattle, Wa.
>> "Real Radios Glow In The Dark"
>>
>>
>>> It looks as though the HP-23 matches the T4X *except*
>>> for the HV.
>>>
>>> The HV says 820 No Load - anyone know what it is with
>>> a load and if there is a fairly simple way to drop it
>>> to 650?

-- 

Thanks! & 73, KD4E
David Colburn http://kd4e.com
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