Re: [volt-nuts] Power consumption of 3458A reference board / fitting one in a 3457A

2017-09-24 Thread Dr. David Kirkby (Kirkby Microwave Ltd)
On 23 September 2017 at 18:03, Tom Knox wrote: > If you want I will send you a few to play with for a few months. > Thank you very much. I'd like to have a play. I sent you a private email. Someone suggested using the DCV:DCV ratio mode to look at two references, but I

Re: [volt-nuts] Power consumption of 3458A reference board / fitting one in a 3457A

2017-09-23 Thread Tom Knox
com> on behalf of Dr. David Kirkby (Kirkby Microwave Ltd) <drkir...@kirkbymicrowave.co.uk> Sent: Saturday, September 23, 2017 8:45 AM To: Discussion of precise voltage measurement Subject: [volt-nuts] Power consumption of 3458A reference board / fitting one in a 3457A I've got t

Re: [volt-nuts] Power consumption of 3458A reference board / fitting one in a 3457A

2017-09-23 Thread Poul-Henning Kamp
In message , Tom Knox writes: Don't forget that the voltage reference is only half of the magic in the 3458A. You would also need to keep the 40K reference resistor comfy. -- Poul-Henning Kamp |

Re: [volt-nuts] Power consumption of 3458A reference board / fitting one in a 3457A

2017-09-23 Thread Tom Knox
rkbymicrowave.co.uk> Sent: Saturday, September 23, 2017 8:45 AM To: Discussion of precise voltage measurement Subject: [volt-nuts] Power consumption of 3458A reference board / fitting one in a 3457A I've got two different, but not totally unrelated questions. 1) Does anyone know what is

[volt-nuts] Power consumption of 3458A reference board / fitting one in a 3457A

2017-09-23 Thread Dr. David Kirkby (Kirkby Microwave Ltd)
I've got two different, but not totally unrelated questions. 1) Does anyone know what is the power consumption of the 3458A reference board? I was thinking of getting one, boxing it up with a battery, that allowed it to keep running without mains power. I would like to know the energy storage the