[time-nuts] Fwd: DC-DC converter

[Joseph Gray]

Mike,

Thanks for the suggestion. I can come up with AC-DC supplies to power
these things, but I would like to be able to power them from 12VDC.
This gives me some flexibility to use a battery backup or even go
mobile/portable if I want.

Joe
KA5ZEC

On Fri, Sep 25, 2009 at 8:18 PM, Mike Feher <mfeher at eozinc.com> wrote:
> I actually built a 48 volt supply inside of my Z3801A. There is just enough
> room between the front panel and the pc board to install a transformer, in
> my case two, and a bridge. A large electrolytic is mounted horizontally to
> the back panel. The 48 volt connector location was modified to accept a
> regular 3 prong filtered AC connector. Has been working great for about 7
> years now. I also replaced the top cover with a copper screen mesh to keep
> it cooler. Not sure if it was necessary, it just seemed the original top
> plate got very warm. Regards - Mike
>
> Mike B. Feher, N4FS
> 89 Arnold Blvd.
> Howell, NJ, 07731
> 732-886-5960
>
>
>
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of Joseph Gray
> Sent: Friday, September 25, 2009 10:05 PM
> To: time-nuts at febo.com
> Subject: [time-nuts] Fwd: DC-DC converter
>
> Oop. I just noticed that Jameco unit is not for 12VDC input. The "A"
> model here is the correct one:
> http://www.trcelectronics.com/Meanwell/sd-50a-24.shtml
>
> In any case, I still can't find something similar with a 48VDC output.
>
>
> ---------- Forwarded message ----------
> From: Joseph Gray <jgray at zianet.com>
> Date: Fri, Sep 25, 2009 at 7:59 PM
> Subject: DC-DC converter
> To: time-nuts at febo.com
>
>
> Does anyone know where I can get an inexpensive 12VDC to 48VDC
> converter to power one of my Z3801A's? I can find 12VDC to 24VDC
> units, like this one at Jameco:
> http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&sto
> reId=10001&catalogId=10001&productId=212514
>
> Thanks.
>
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