[sdiy] Trying to establish confidence in my test equipment

[Gene Stopp]

Hey this is something I've always wondered about but never researched, and
what better crowd to ask?

I know that calibration needs to be compared to a standard somewhere. Doing
it on your own invokes all kinds of chicken-and-egg dilemmas. Is there any
physical process readily available that can provide a guaranteed voltage
calibration reference? Something like "mix chemical A with chemical B with
copper and zinc electrodes and the differential will be 1.20998 volts". 

- Gene


-----Original Message-----
From: owner-synth-diy at dropmix.xs4all.nl
[mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of Chris Manders
Sent: Tuesday, March 07, 2006 2:19 PM
To: synth-diy at dropmix.xs4all.nl
Subject: Re: [sdiy] Trying to establish confidence in my test equipment


Hi Bob

Thank you for your reply.

I tend to agree with you - The first two meters
(although previously I would have said weren't as
good) seem more accurate.

The Radio spares meter I speak of is more accurately a
Precision Gold meter. Originally costing around 70 UKP
(120 USD). I am beginning the think now that THAT one
is my best meter.

Thanks again
Christian