[volt-nuts] Fluke 335A versus HP 740B

WB6BNQ wb6bnq at cox.net
Sat Dec 15 02:31:03 UTC 2012


David,

The difference between the 335 A or D model I don't recall off the top of my head specifically, but they were improvements.  I
would probably take the D but really either one is good, assuming, of course, they are working.

You might want to consider getting both of them.  They can handle being 1000 volts above ground.  So with two you have a
calibrated DC voltage up to 2000 volts.

You still need a good null meter.  While the 335's null meter is OK, it does not hold a candle to the Fluke 845 when it comes
to isolation.

Are you just gathering this stuff for your own use as a hobbyist or are you intending to get into some commercial concern ?

Bill....WB6BNQ


"David C. Partridge" wrote:

> And also what is the difference between a 335A and a 335D?
>
> Thanks again,
> Dave
> -----Original Message-----
> From: volt-nuts-bounces at febo.com [mailto:volt-nuts-bounces at febo.com] On Behalf Of David C. Partridge
> Sent: 15 December 2012 02:16
> To: 'Discussion of precise voltage measurement'
> Subject: [volt-nuts] Fluke 335A versus HP 740B
>
> Both DC Voltage standards up to 1000V or so, and also null differential meters.
>
> Also both being sold by the same vendor as the other stuff
>
> Do the assembled mavens have a view as to which is preferable?
>
> Thanks
> Dave
>
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