"Decameter" What is this test unit ?

redrabbit · 5th August 2007, 08:09 PM

DECAMETER, by Auto Data, San Diego, CA.
(pics/link below)

I have one of these. I don't exactly know what is does.
Check out the "deco" style faceplate !!
It is some sort of decade, voltmeter, divider ???
Perhaps it measures voltage via the resistors/rotary switches, but I'm not sure about the purpose plug-in boards....they are a voltage reference and for driving the display??

I have not powered it up yet, needs a new power cord. I don't think it is a Nixie display.
There is an aluminum sealed part (see pics) on one of the boards called "precision reference" by Viking.
Resistor banks uses 0.01% resistors, w/Daven rotary switches.

What do you think ?

(feel free to view all related pics in this folder.)
http://www.esnips.com/doc/40775739-0...R-by-Auto-Data

=RR=

Conrad Hoffman · 5th August 2007, 09:15 PM

I've seen a mess of test equipment, and never seen one of those. It looks like it has a null meter, similar to a Fluke voltage standard and such. It might be some kind of meter calibrator or precision voltage source, or it could be a meter itself, matching an internal source dialed up on the front, with an external source, using the null meter, like the old Fluke differential meters. It just doesn't have enough knobs to really precise, so I dunno. Stick a DVM on the terminals, play with the knobs and switches, and see what you get!

5th August 2007, 08:09 PM	#1
redrabbit diyAudio Member Join Date: Oct 2004	"Decameter" What is this test unit ? DECAMETER, by Auto Data, San Diego, CA. (pics/link below) I have one of these. I don't exactly know what is does. Check out the "deco" style faceplate !! It is some sort of decade, voltmeter, divider ??? Perhaps it measures voltage via the resistors/rotary switches, but I'm not sure about the purpose plug-in boards....they are a voltage reference and for driving the display?? I have not powered it up yet, needs a new power cord. I don't think it is a Nixie display. There is an aluminum sealed part (see pics) on one of the boards called "precision reference" by Viking. Resistor banks uses 0.01% resistors, w/Daven rotary switches. What do you think ? (feel free to view all related pics in this folder.) http://www.esnips.com/doc/40775739-0...R-by-Auto-Data =RR=

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5th August 2007, 09:15 PM	#2
Conrad Hoffman diyAudio Member Join Date: Mar 2007 Location: Canandaigua, NY USA	I've seen a mess of test equipment, and never seen one of those. It looks like it has a null meter, similar to a Fluke voltage standard and such. It might be some kind of meter calibrator or precision voltage source, or it could be a meter itself, matching an internal source dialed up on the front, with an external source, using the null meter, like the old Fluke differential meters. It just doesn't have enough knobs to really precise, so I dunno. Stick a DVM on the terminals, play with the knobs and switches, and see what you get!

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