[ARC5] Cool New DC-DC Converter

[Michael Hanz]

I assume as a supply for battery sets that require both A and B 
batteries, Mac.

  - Mike  KC4TOS

On 3/15/2018 9:44 AM, D C _Mac_ Macdonald wrote:
>
> If you already have the 12VDC, why would you even be concerned about 
> using the low voltage output?  I assume (yeah, I know) that one might 
> be considering changing command set receivers to 12V filaments, but 
> don't know why you would want to have regulated filament voltage 
> except maybe for the local oscillator/mixer.
>
>
> 73 de Mac, K2GKK/5
> (Since 30 Nov '53)
> Oklahoma City, OK
> USAF Retired 61-81
> FAA Retired 94-10
>
>
> ------------------------------------------------------------------------
> *From:* arc5-bounces at mailman.qth.net <arc5-bounces at mailman.qth.net> on 
> behalf of Peter Gottlieb <kb2vtl at gmail.com>
> *Sent:* Thursday, March 15, 2018 08:34
> *To:* David Stinson
> *Cc:* ARC-5; milsurplus at mailman.qth.net
> *Subject:* Re: [ARC5] Cool New DC-DC Converter
> Sounds useful. Question:  how much more current does a tube filament 
> take when cold?
>
>
> Peter
>
> > On Mar 15, 2018, at 8:37 AM, David Stinson <arc5 at ix.netcom.com> wrote:
> >
> > This DC-DC converter looks really interesting. It
> > inputs 12V and can source a regulated from 1.25V
> > to 12V at 3A for filaments and regulated 150V to
> > 420V at up to 60mA for B+.  Gonna get me one of
> > these.
> > 
> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ebay.com%2Fitm%2F173034019336&data=02%7C01%7C%7C9450b4624bca42f4892d08d58a7988e3%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636567176942236244&sdata=UIr0oP1%2BuK5czkkVQd1eSPEvvaLocFUPJqZdItiEl%2Fc%3D&reserved=0
> >
> > 73 Dave AB5S
>

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