Thanks a lot for finding this. I did a search of that page for "supply" but didn't turn this up. That is indeed the model series that I have.
On Sun, Aug 9, 2009 at 4:29 PM, Bruce Griffiths<[email protected]> wrote: > The list price of these was $US839 and they are fan cooled. > See HP Journal April 1975 for a description of the 62605M. > > Bruce > > Joseph Gray wrote: >>> A good test would be to load it down to its rated current and voltage >>> and monitor noise with a clamp on current probe ( on one lead) >>> to a low frequency spectrum analyzer >>> >> >> I don't have a spectrum analyzer. I emailed a friend about using his. >> >> >>> Open it up and look for tell tale signs of the original equipment >>> manufacturer, possibly on the PCB. >>> >> >> I don't find any vendor markings on the boards that I can see. The >> main switching circuit is housed inside a metal box that would be >> difficult to take apart. The entire assembly is built into another >> metal box that has a removable top. Everything seems well shielded. >> >> I did do a test last night, using my Sony ICF-2010 shortwave receiver. >> I can't power the Sony directly from the 13.8VDC, but I did plug its >> power adapter into the same AC socket as the HP supply. With the Sony >> sitting on top of the supply, I didn't notice any noise from the >> supply on 80M-10M. I thought I heard some noise on 160M, but that band >> was so noisy that it was hard to tell. >> >> If my friend with the spectrum analyzer comes through, I'll be able to >> see some real measurements on the DC output itself. >> >> _______________________________________________ >> 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.
