[ARC5] HP 23 for ARC5

[Dennis Monticelli]

FYI.  I use 500V regulated to my T-22.  It draws 100mA from the plate while
producing almost 30W out.  Then you add 1625 screen current
(separately regulated) and 1626 plate current to that, but it's all well
below 150mA in my setup.

Dennis AE6C

On Mon, Feb 24, 2025 at 10:15 AM Mark K3MSB <mark.k3msb at gmail.com> wrote:

> Most of us use a voltage divider for the HV, Screen and Oscillator
> voltages.   Easy to build.
>
> The HV needs to be 550V @ 200 mA at a MINIMUM.
>
> Check the specs on your HP-23 variant.   The HP-23B has a HV rating of
> 700v @ 250 mA.  That should be fine using a variac in front of the HP
>
> Mark K3MSB
>
> On Mon, Feb 24, 2025 at 12:20 PM Russ Tine via ARC5 <arc5 at mailman.qth.net>
> wrote:
>
>> Hi Folks,
>>
>> I'm new to the list, and I am looking for some advice about using an HP
>> 23 power supply for my T-22.
>>
>> I still use the power supply for my HW 101, so I do not want to make any
>> mods to the PS itself, I would rather add a voltage divider external to the
>> PS that I could plug in for the T-22 and remove for the HP 23.
>>
>> Thanks in advance and 73,
>>
>> Russ Tine K1RWT
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