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 <[email protected]> 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: [email protected] [mailto:[email protected]] On > Behalf Of Joseph Gray > Sent: Friday, September 25, 2009 10:05 PM > To: [email protected] > 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 <[email protected]> > Date: Fri, Sep 25, 2009 at 7:59 PM > Subject: DC-DC converter > To: [email protected] > > > 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. > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
