[ARC5] DC-DC Up Converter

[Steve Miller]

Mark,
I’m using this one for my Paraset.
It is 6VDC filament, not AC, and around 300VDC.
The weird thing is hat there is about  15 second “warm up” time before the voltage appears.
It works very well. 
My Paraset draws about 40 ma key down.
  

Tube Preamp Switch Power Supply... https://www.amazon.com/dp/B0D9VCYBLB?ref=ppx_pop_mob_ap_share

Here is another one. I bought both.

Vacuum Tube Preamplifier... https://www.amazon.com/dp/B0DZGR1HPR?ref=ppx_pop_mob_ap_share

73!


Steve WA3JJT




Sent from my iPhone

> On Sep 11, 2025, at 7:40 PM, Mark K3MSB <mark.k3msb at gmail.com> wrote:
> 
> 
> Hi Folks
> 
> A while back (perhaps a few weeks)  there was a thread on DC to DC up converters in which there was one particular unit that quite a few people liked.
> 
> I thought I saved that info but didn't.  If anyone has the info, please forward.
> 
> Thanks
> 
> Mark K3MSB
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