[Test-Equipment] rms voltmeter?

[Sandy]

Anyone know what sort of "standard" one usually uses to calibrate an "AC" 
indicating instrument?

I don't know of any "voltage standard" that is available unless I've been 
overlooking somethng.

It's much easier to find a DC voltage source that's accurate.  Where does 
one find an "accurate" (1% MAX or tighter)?

73,
Sandy W5TVW
----- Original Message ----- 
From: "Dale H. Cook" <radiotest at cox.net>
To: <test-equipment at mailman.qth.net>
Sent: Saturday, January 19, 2008 5:33 PM
Subject: Re: [Test-Equipment] rms voltmeter?


> At 05:37 PM 1/19/2008, John Forster wrote:
>
>>the first 5 digits of the model number are the CAGE code.
>
> I don't see it listed anywhere, but I'll bet that 50423 is the CAGE code 
> for Ballantine, whose 3028B is a 3.5 digit LED DMM with a small analog 
> meter.
>
> Dale H. Cook, Chief Engineer, Centennial Broadcasting, Roanoke/Lynchburg, 
> VA - WZZI / WZZU / WLNI / WLEQ
> http://members.cox.net/dalehcook/starcity.shtml
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