Re: [volt-nuts] Ayrton Shunt does double duty.

2018-05-04 Thread Bruce Griffiths
The volt box is likely to be a voltage divider that was used to divide a voltage to be measured down to a value within the measurement range of a L & N potentiometer (not the 3 terminal component but the type that sets up the current in a series string of resistors to a known vale by comparing

Re: [volt-nuts] Ayrton Shunt does double duty.

2018-05-04 Thread geoelectronics
Hello Dave. So far I have identified 3 different Leeds & Northrup "Boxes". Originally my intention was to re-purpose the box, panel connectors and switch for a project to make my own precision resistor banks. All use different switches and vastly different resistors to achieve their original

Re: [volt-nuts] Ayrton Shunt does double duty.

2018-05-04 Thread Dr. David Kirkby
On Mon, 30 Apr 2018, 20:02 , wrote: > Leeds and Northrup Ayrton Shunt box Model 2664. > > Modified to do double duty as a precision resistor standard. I must admit I don't know what the purpose of the original unit is. Perhaps as part of a bridge given the

Re: [volt-nuts] Ayrton Shunt does double duty.

2018-04-30 Thread geoelectronics
> > -Original Message- > From: volt-nuts [mailto:volt-nuts-boun...@febo.com] On Behalf Of > geoelectron...@rallstech.net > Sent: Monday, April 30, 2018 6:22 PM > To: Discussion of precise voltage measurement > Subject: Re: [volt-nuts] Ayrton Shunt does double duty. &g

Re: [volt-nuts] Ayrton Shunt does double duty.

2018-04-30 Thread Mitch Van Ochten
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

Re: [volt-nuts] Ayrton Shunt does double duty.

2018-04-30 Thread geoelectronics
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

Re: [volt-nuts] Ayrton Shunt does double duty.

2018-04-30 Thread jasonpepas
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, geoelectron...@rallstech.net wrote: > > Leeds and Northrup Ayrton Shunt box Model 2664. > >