First class work there Mitch. Did I see a ham radio?
73 DE K0FF George Dowell On 2018/04/30 09:19 PM, Mitch Van Ochten wrote: > Built a small temperature chamber using a Starbucks Refrigerator, Yokogawa > Temperature controller, and PTC Heater (300 watt). It covers 0 degrees C to > 55 degrees C and has an RS-485 interface to the PC. The compressor runs all > the time, and the controller cycles the 300 watt heater as needed to > stabilize the temperature. Here is a link to a YouTube video showing it: > > https://youtu.be/ETj4owB3I0k > > Mitch > > -----Original Message----- > From: volt-nuts [mailto:[email protected]] On Behalf Of > [email protected] > Sent: Monday, April 30, 2018 6:22 PM > To: Discussion of precise voltage measurement > Subject: Re: [volt-nuts] Ayrton Shunt does double duty. > > No environmental chamber yet, have a Yokogawa controller and and an EIS > sensor simulator, going with a small box in the first for individual > components, but workload keeping me from completion of so many fun > projects. Now we are nearing grass cutting season here, the completion > of projects ratio will suffer. > > George Dowell > > On 2018/04/30 03:11 PM, [email protected] wrote: > > Much appreciated! I saw some of those units listed on eBay inexpensively and > was curious about such a "mod". Have you characterized it for tempco? > > Sent from my iPhone > > On Apr 30, 2018, at 2:02 PM, [email protected] wrote: > > Leeds and Northrup Ayrton Shunt box Model 2664. > > Modified to do double duty as a precision resistor standard. > > Pictures here: > > http://www.qsl.net/k/k0ff/VOLT_NUTS/Ayrton_Shunt_Conversion/ > > Later I'll write it up and post it to that link as a PDF with text and > pictures, plus any subsequent modifications. > > George Dowell > _______________________________________________ > volt-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts > and follow the instructions there. > _______________________________________________ > volt-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts > and follow the instructions there. _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there. _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there. _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
