[time-nuts] Fwd: DC-DC converter

Mike Feher mfeher at eozinc.com
Sat Sep 26 02:18:57 UTC 2009

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

-----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:

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:


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