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 Post subject: TALLY-COUNT BY STANDARD INSTRUMENT CORP - EVER SEEN ONE??
PostPosted: Jun Thu 17, 2021 7:52 pm 
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Joined: Jul Fri 12, 2019 10:05 pm
Posts: 16
I recently picked up this "Tally-Counter" on the big auction site because it looked so unusual. It has multiple sections of inputs and outputs, including counter/timer functions and some other unknown connectors which are not marked. I ran quite a few searches, but cannot find any information about it at all.

The three dekatron tubes light up, but the counter function didn't seem to be working or I the jumper configuration needs to be set somehow. I haven't really dug into this yet, but I plan to do a complete check of all components. I would like to find a schematic and would be glad to pay for a copy if anyone has one.

Anyway, I think it's pretty cool. I own a few dekatron tubes, but have never fired one up. I have many counters with nixie tube and other types of displays, but this is the only one I've ever owned that has dekatron tubes.

A few pictures follow. Disregard the letters which I was simply using to identify sections and parts of sections.

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Tally-Count 01.JPG
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Tally-Count 15.JPG
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 Post subject: Re: TALLY-COUNT BY STANDARD INSTRUMENT CORP - EVER SEEN ONE?
PostPosted: Jun Thu 17, 2021 8:05 pm 
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Never seen one. Nicely built. I would guess it's a Totalizer of some type.


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 Post subject: Re: TALLY-COUNT BY STANDARD INSTRUMENT CORP - EVER SEEN ONE?
PostPosted: Jun Thu 17, 2021 11:36 pm 
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Nice, really like those decatrons.

Maybe an industrial event counter? Automation control for counting items on an assembly line? It's got that industrial look, a bit more than a scientific instrument look.

If it was industrial, your odds of finding a schematic are approximately zero :lol: but it shouldn't be hard to figure out.


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 Post subject: Re: TALLY-COUNT BY STANDARD INSTRUMENT CORP - EVER SEEN ONE?
PostPosted: Jun Thu 17, 2021 11:50 pm 
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I"m guessing those connectors, which are fairly standard types and not impossible to get, were for the sensor elements on whatever the thing was counting. It could have been anything from a steam turbine to a subway turnstile. Or a ride at an amusement park lol.

Very cool, those decatron tubes :)

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 Post subject: Re: TALLY-COUNT BY STANDARD INSTRUMENT CORP - EVER SEEN ONE?
PostPosted: Jun Fri 18, 2021 3:58 am 
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The Z502S dekatron is a selector type, which means that it has a separate output for each of the ten counts. Those would be wired to the three rotary switches so that you can preset the unit to energize a relay when it reaches the specified count.
https://www.radiomuseum.org/tubes/tube_z502s.html


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 Post subject: Re: TALLY-COUNT BY STANDARD INSTRUMENT CORP - EVER SEEN ONE?
PostPosted: Jun Fri 18, 2021 3:59 am 
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As it turns out, the extra NOS Dekatron tubes I grabbed a few years back (for a project that never materialized) are the alternatives listed on the front panel of this machine. I tested each one and they each lit up. Having a few extras is a great start.

I opened it to clean things up a bit and have a quick look around (added pics below of the inside). It looks like it hasn't been opened since it left the factory. It's quite heavy and build quality is nice with discrete, well labeled, sections. Most of the component labels have been oriented upright for quick reference and good spacing will make working on this unit a joy. The tech who performed this build took great pride in their work. It looks fantastic. A few of the components have gold plated leads (see blurred pic) and I am sure this little machine was a fine workhorse in its day when called upon. If I am not able to source a schematic, I'll simply start by changing out the capacitors and test components as I go.

I'm looking forward to this project and I am sure she'll be just fine. But, if it all goes nowhere, that housing is heavy enough to be converted to a nice little tabletop smoker. I'm sure it will not come to that.

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Tally-Count 19 Reset Circuit.JPG
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Tally-Count 20 Power Supply Circuit.JPG
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Tally-Count 21 Photoelectric Amplifier.JPG
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Tally-Count 22 Control Knobs.JPG
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Tally-Count 23 Power Supply Circuit.JPG
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Tally-Count 25.JPG
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Tally-Count 26 Gold Plated Leads.JPG
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Tally-Count 28.JPG
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Tally-Count 29.JPG
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Tally-Count 31 GS10C Tubes.JPG
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 Post subject: Re: TALLY-COUNT BY STANDARD INSTRUMENT CORP - EVER SEEN ONE?
PostPosted: Jun Fri 18, 2021 5:25 am 
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Barry H Bennett wrote:
I"m guessing those connectors, which are fairly standard types and not impossible to get, were for the sensor elements on whatever the thing was counting. It could have been anything from a steam turbine to a subway turnstile. Or a ride at an amusement park lol.

Very cool, those decatron tubes :)


Thanks, Barry. If you know the names of either of those connectors, I would be grateful to know what they are.


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 Post subject: Re: TALLY-COUNT BY STANDARD INSTRUMENT CORP - EVER SEEN ONE?
PostPosted: Jun Fri 18, 2021 5:27 am 
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Joined: Jul Fri 12, 2019 10:05 pm
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BobWeaver wrote:
The Z502S dekatron is a selector type, which means that it has a separate output for each of the ten counts. Those would be wired to the three rotary switches so that you can preset the unit to energize a relay when it reaches the specified count.
https://www.radiomuseum.org/tubes/tube_z502s.html



Thanks, Bob! I will eventually post whatever I can find out about this one up to RM.org.


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 Post subject: Re: TALLY-COUNT BY STANDARD INSTRUMENT CORP - EVER SEEN ONE?
PostPosted: Jun Fri 18, 2021 5:33 am 
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N2LXM wrote:
Never seen one. Nicely built. I would guess it's a Totalizer of some type.


Adding "totalizer" to my keywords as I continue my research!


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 Post subject: Re: TALLY-COUNT BY STANDARD INSTRUMENT CORP - EVER SEEN ONE?
PostPosted: Jun Fri 18, 2021 6:30 am 
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PaulAm wrote:
Nice, really like those decatrons.

Maybe an industrial event counter? Automation control for counting items on an assembly line? It's got that industrial look, a bit more than a scientific instrument look.

If it was industrial, your odds of finding a schematic are approximately zero :lol: but it shouldn't be hard to figure out.


Yes, I agree. I thought it looked more factory/industrial too. Most of my other counters are measurement tools with a compliment of BNC inputs and outputs. The NO/NC taps on this one make it seem like it controls something rather than tracking a count. Come to think of it, and although it is way more industrial, this reminds me of a small electronic timer kit I use for testing old 24V clocks. You can see the timer and one of my clocks working together here https://youtu.be/lrrCnNGuJVg.

Hmm...do they do the same thing?? It will be interesting to find out. I don't know if a schematic will surface, but I'm holding out hope. I'll press on either way.


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