Hi For $393.75 does it come with a wall wart?
If not I would definitely go for a "medical" ground isolated / low leakage version to power the beast. The added cost over a plain jane wall wart won't add much to the purchase price percentage wise. Bob -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Thursday, January 31, 2013 3:58 PM To: [email protected]; [email protected] Subject: Re: [time-nuts] Low noise power supplies? Not sure if anyone posted this here yet, but Abracom has a very low noise (7nV/RtHz at 1KHz) power source for VCO's etc, with various outputs. It's sold on DIgikey or Mouser I think. Here is a review of that unit: _http://jaunty-electronics.com/blog/category/reviews/_ (http://jaunty-electronics.com/blog/category/reviews/) Co-incidentally he also has a review of one of our units on the same page. This is a very handy and reasonably priced power supply for many low-noise type of experiments. bye, Said In a message dated 1/30/2013 21:36:50 Pacific Standard Time, [email protected] writes: Lester Veenstra wrote: > The typical test supply on a bench for clean VCO testing is a small gel cell > battery. For a regulated power supply, make one using a 723. The 723 has > far lower noise out than the monolithic regulators. > > Depends on the variety of 723 some are noisier than others. Some use an internal zener reference, some use a bandgap reference. The original used a zener reference. Bruce > Lester B Veenstra MØYCM K1YCM W8YCM > [email protected] > > US Postal Address: > 5 Shrine Club Drive > HC84 Box 89C > Keyser WV 26726 > GPS: 39.33675 N 78.9823527 W > > Telephones: > Home: +1-304-289-6057 > US cell +1-304-790-9192 > UK cell +44-(0)7849-248-749 > Guam Cell: +1-671-929-8141 > Jamaica: +1-876-456-8898 > > This e-mail and any documents attached hereto contain confidential or > privileged information. The information is intended to be for use only by > the individual or entity to whom they are addressed. If you are not the > intended recipient or the person responsible for delivering the e-mail to > the intended recipient, be aware that any disclosure, copying, distribution > or use of the contents of this e-mail or any documents attached hereto is > prohibited. > > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of Richard (Rick) Karlquist > Sent: Wednesday, January 30, 2013 9:17 PM > To: Discussion of precise time and frequency measurement > Subject: [time-nuts] Low noise power supplies? > > > I know this topic has been discussed in the past on the list, but a > colleague is asking if there are any off the shelf low noise power supplies > for testing oscillators. Something a cut above an HP "brick" lab power > supply etc. They are hoping to avoid having to homebrew a power > conditioning circuit. > Did we ever arrive at a concensus as to the state of the art in homebrew > power conditioning circuits? > > Any help would be appreciated. > > Rick Karlquist N6RK > _______________________________________________ > 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. _______________________________________________ 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.
