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| Advance Instruments TC8 - Only counts |
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| pwarren:
Hi folks, I've been given some test gear recently, a Tektronix 466, which I think I've mostly worked out, it needs a calibration, but I'll get that done later, and an Advance Instruments Timer Counter TC8. I'm told it's a frequency counter, but I can only seem to get it to count events, so I get an increasing count that does eventually roll over. I made a video and stuck it on Youtube of the output I've been able to get: I don't really know what all the knobs and buttons do, so I may have it in the wrong mode. I've also not been able to find any sort of manual online for it so I'm struggling a bit! Any help would be much appreciated! |
| Rerouter:
I cannot help with much, but look for a timebase / gate knob, (usually in decades of 10) as my own tectronics plugin counter has a similar setting, |
| pwarren:
Thanks Reroute, it does have a row of gate buttons with ?s, ms and s (see picture attachment), but pressing those buttons sometimes does things, and sometimes doesn't :( Sometimes changing the buttons stops the count, other times the only effect is to move the decimal indicating light, other times it speeds up the count a lot. I'm thinking that perhaps all the buttons and knobs need a good clean, it had been sitting in a shed full of spiders and ants! From a search, it looks like de-oxit is the stuff to use to clean the contacts so I'll see if I can find a retailer and have a go at that. If I open up the case, I don't really know what to look for to see if any components are busted, anything to watch out for or test with a multimeter? |
| bance:
Hey, I've got the TC9B which is very similar to your counter, mine doesn't work yet.... I found a manual for it here:- http://www.collection.archivist.info/searchv13.php?searchstr=Advance There does appear to be a copy of the TC8 manual but it hasn't been scanned, or is not available for download, but don't worry mine was the same. Just email the archivist and he'll get back to you, they don't charge for the manuals, just make a donation so the resource can survive! PS your manual is in the sixth section down, right at the very top. HTH Steve. |
| pwarren:
Ah, thanks Bance, I had dismissed that website prematurely before without fully reading the front page! So, Dave's scanned in the manual for me, and that's clarified a lot of things. It seems that It's a faulty unit, mostly with the timebase module, or possibly the time reference, I'll check that out on the scope tonight. Have had a quick go with de-oxit, with no improvement as yet, but I could only find a pen locally, which doesn't get the goop where it needs to go! Still random behaviour when pressing the buttons. |
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