Author Topic: Nicolet 2090 III digital scope need basic set help or manual.  (Read 512 times)

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Offline wd5jfr

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Nicolet 2090 III digital scope need basic set help or manual.
« on: December 06, 2021, 04:13:15 pm »
Just picked up a nice very, very clean one (from 1978?) and Variaced it on and seems to work except that I can't set it to display a trace but I see random pattern of dots, nice bright display with numerics. All the different settings I've tried won't make a trace.
In the PEN Function I see the spot moving up the left side of the crt then partially across the top of the screen and down.
I hope it's just a problem with the basic set up and if anyone can guide me I'd sure like to see if I can get a trace and some other functions if it's operational. On reflection I think it might be the vertical section but I hope it's my ignorance on set up.
Thanks
Hank
 

Offline tunk

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Re: Nicolet 2090 III digital scope need basic set help or manual.
« Reply #1 on: December 06, 2021, 05:08:00 pm »
Wouldn't really know and probably doesn't make any difference,
if you assume lower left is channel B, and you've set channel A as trigger.
 

Offline wd5jfr

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Re: Nicolet 2090 III digital scope need basic set help or manual.
« Reply #2 on: December 06, 2021, 06:09:34 pm »
Thanks for looking and you are correct on both points and and figured someone would catch something.
Here's a proper setting pic.
 

Offline Andrew_Debbie

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Re: Nicolet 2090 III digital scope need basic set help or manual.
« Reply #3 on: December 06, 2021, 09:17:29 pm »
Amazing that it still works.   I briefly used a Nicolet Med-80  and did a little programming on one around 1984.    It was a few years old and waay out of date --   It was a 20-bit machine with core memory.  The display was in a Tek 5000 series mainframe.  There was an 8" floppy and it also had a paper tape reader.     Most programs were on paper tape. 

It was an odd thing - partly hardwired like a DSO and partly programmable like an old mini computer.


It did DSO stuff but mostly was used as a signal averager.    The A/D module had 'scope like controls and a 50kHz sampling rate.    It could also play Pong.  Knobs on the Med-80 moved the paddles.   Display was on the Tektronix 'scope.



« Last Edit: December 06, 2021, 09:19:00 pm by Andrew_Debbie »
 

Offline wd5jfr

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Re: Nicolet 2090 III digital scope need basic set help or manual.
« Reply #4 on: December 07, 2021, 10:16:19 pm »
Got a couple of more traces from trial and error settings.  If you look closely at the dim display you can see the peaks of a squished  sine wave.  I hope it's a setup problem but I still think;s related to the input.  Still hoping for help.
 

Offline wd5jfr

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Offline shakalnokturn

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Re: Nicolet 2090 III digital scope need basic set help or manual.
« Reply #6 on: December 09, 2021, 10:07:35 pm »
Does it trigger at all?
 

Offline wd5jfr

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Re: Nicolet 2090 III digital scope need basic set help or manual.
« Reply #7 on: December 09, 2021, 10:38:34 pm »
Yes, the trigger light flashes but I don't see anything after the flash on the crt. Sometime the trigger light will stay until I move a control but it seems to be different ones each time.
 

Offline wd5jfr

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Re: Nicolet 2090 III digital scope need basic set help or manual.
« Reply #8 on: December 26, 2021, 10:46:42 pm »
Still looking for   help.
Thanks
Han
 


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