Author Topic: Guildline Instruments  (Read 11731 times)

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Offline doktor pyta

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Re: Guildline Instruments
« Reply #25 on: February 16, 2018, 10:00:00 am »
Thanks for the manual of GL9540.

@0.01C : from Your experience - what is the level of noise ?

P.S. Take a look on the schematic.
This is just beautiful.
Relatively cheap components are used to design high accuracy front end.
« Last Edit: February 17, 2018, 04:30:49 pm by doktor pyta »
 
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Offline Emrtech

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Re: Guildline Instruments
« Reply #26 on: February 16, 2018, 03:29:12 pm »
Thanks for doing it for me. It is the same manual I have.  :)
Regards,
Gerhard
 

Offline Emrtech

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Re: Guildline Instruments
« Reply #27 on: February 16, 2018, 03:33:57 pm »
Under stable conditions, only the last digit rolls occasionally around a little. +/- 1-2 LSD.
 
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Offline manganin

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Re: Guildline Instruments
« Reply #28 on: July 05, 2024, 06:11:58 am »

Anyone in France with too much time and space?

https://www.ebay.com/itm/296546160707

 

Offline andrewtaylor

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Re: Guildline Instruments
« Reply #29 on: July 05, 2024, 12:43:40 pm »

Anyone in France with too much time and space?



This seller in France is a really reliable one. I bought a lot of used T&M equipment from him during the last years. All top quality, no hidden fauilts...

But sorry, I've no space for the of measurment furniture .-)
WAF is too low to get it into the house without troble...grin
 

Offline NANOJOLTS

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Re: Guildline Instruments
« Reply #30 on: July 05, 2024, 05:32:55 pm »
Hey, lots of great Guildline demos/info. on Youtube! I learned a few things.
 

Offline BarrowBoy

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Re: Guildline Instruments
« Reply #31 on: July 09, 2024, 06:45:41 am »
Hi Folks,
             Love this thread. Know a bit about this gear ;) All, I'll say on the matter at this point of time.  :-DD
 

Offline stevebyan

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Re: Guildline Instruments
« Reply #32 on: July 09, 2024, 05:42:43 pm »
Here’s my pair of non-functional Guildline 9520 Teraohmmeters.

Artek has a manual, but it appears to be missing the schematic for the display section. Shouldn’t be too hard to reverse engineer, it’s all just ancient TTL.
 

Offline BarrowBoy

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Re: Guildline Instruments
« Reply #33 on: July 09, 2024, 06:26:58 pm »
The background in the picture is as cool as your 9520's in the foreground. good luck salvaging all of them geriatrics . I can't help you in that regard, but well worth the effort. I recently supplied a client a replacement stir motor for a old Guildline liquid bath, that frankly can't be replaced in their mind. Pretty sure it was 1977 vintage. Could Guildline and did Guildline provide a replacement motor...YES...Was it in stock, NO....did it take ages and ages to arrive...YES......was it free or low cost....NO....but did it allow a highly trusted, with masses of historical calibration data remain within context...YES.

Dave started this thread, again....just informing. I mean who in this forum is the market for a Guildline Resistance Bridge (and I mean a brand new one) ...somebody Surprise me.  :)
« Last Edit: July 09, 2024, 06:30:53 pm by BarrowBoy »
 

Offline BarrowBoy

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Re: Guildline Instruments
« Reply #34 on: July 09, 2024, 07:25:04 pm »
And here's the weird link between Dave and Guildline despite them both being involved in some pretty salty gear, I'd say Dave was closer to a piece of Guildline equipment while out at sea conducting sea mapping surveys and upsetting dolphins than he may have realized. I like that word ;)
« Last Edit: July 09, 2024, 07:26:58 pm by BarrowBoy »
 

Offline EEVblogTopic starter

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Re: Guildline Instruments
« Reply #35 on: July 12, 2024, 12:22:32 am »
And here's the weird link between Dave and Guildline despite them both being involved in some pretty salty gear, I'd say Dave was closer to a piece of Guildline equipment while out at sea conducting sea mapping surveys and upsetting dolphins than he may have realized. I like that word ;)

Had never seen them actually. We didn't need any "standard seawater" AFAIK for our in-house 10m deep test tank. Not sure how that was calibrated actually, that was mainly used by the military guys. Seismic was a bit more loosy-goosy, we'd just chuck it in the actual ocean.
 

Offline donlisms

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Re: Guildline Instruments
« Reply #36 on: July 12, 2024, 08:14:53 am »
The Australian Bruce V Hamon, of 100:1 build-up resistor fame, moved from working on resistance to another department at CSIRO shortly after publishing that article.  There, he focused on analyzing tides and currents and temperatures and that sort of thing, driving around in boats and throwing instruments in the water.

Perhaps I'm stretching too much to see parallels with Dave.
 

Offline leighcorrigall

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Re: Guildline Instruments
« Reply #37 on: July 13, 2024, 01:51:35 am »
And here's the weird link between Dave and Guildline despite them both being involved in some pretty salty gear, I'd say Dave was closer to a piece of Guildline equipment while out at sea conducting sea mapping surveys and upsetting dolphins than he may have realized. I like that word ;)

Here is another Canadian company that does oceanic metrology.
https://rbr-global.com/
MASc, EIT, PhD Candidate
 


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