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Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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14th Sep 2012, 5:43 pm | #1 |
Octode
Join Date: Jun 2005
Location: Sheffield, South Yorkshire, UK.
Posts: 1,227
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Insulated Vacuo junction, Cambridge Instruments.
Can anyone shed light on this which I found in with some old valves? It looks new and measures 0.25R as stated. Inside is a tiny valve.
Photos coming later as computer refusing to load at the moment. Last edited by Pete_kaye; 14th Sep 2012 at 6:07 pm. |
14th Sep 2012, 8:19 pm | #2 |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,536
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Re: Insulated Vacuo junction, Cambridge Instruments.
I wouldn't mind betting someone might be keen to have it!
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....__________ ....|____||__|__\_____ .=.| _---\__|__|_---_|. .........O..Chris....O |
16th Sep 2012, 3:58 pm | #3 |
Octode
Join Date: Jun 2005
Location: Sheffield, South Yorkshire, UK.
Posts: 1,227
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Re: Insulated Vacuo junction, Cambridge Instruments.
I am still unable to upload photos which are 80KB- they uploaded OK just now in Hotmail and were received fine too . After about 10 seconds I get 'Server error message .unable to respond at the moment Contact your Network adviser' but this does not occur within other websites .I am on University computer.Never had trouble before.
As a test ,would someone give me an email address to send photos to and then they could upload them .I have just had memory card scanned and no faults were found. Last edited by Pete_kaye; 16th Sep 2012 at 4:21 pm. |
16th Sep 2012, 5:34 pm | #4 |
Rest in Peace
Join Date: Apr 2011
Location: Matlock, Derbyshire, UK.
Posts: 1,378
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Re: Insulated Vacuo junction, Cambridge Instruments.
Peter has asked me to post the pretty pictures so here goes.
Trevor. |
16th Sep 2012, 5:39 pm | #5 |
Octode
Join Date: Jun 2005
Location: Sheffield, South Yorkshire, UK.
Posts: 1,227
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Re: Insulated Vacuo junction, Cambridge Instruments.
thanks Trevor .This proves there is something funny going on here but I don't know what
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16th Sep 2012, 6:57 pm | #6 |
Octode
Join Date: Jul 2004
Location: Dundee, UK.
Posts: 1,813
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Re: Insulated Vacuo junction, Cambridge Instruments.
Peter, Herald,
Unless I have misunderstood the description, this is a vacuum thermocouple junction which is a very delicate device used for precision true rms conversion. See the earlier thread entitled "AC/ DC convertor, croydon precision instruments" https://www.vintage-radio.net/forum/...ad.php?t=27719 And yes, I have been looking for one of these for a couple of years. Peter, If you don't have a use for this device yourself, I would be very interested in acquiring it, but please don't test it unless you have full data as it will be very easily damaged. PMM Last edited by Station X; 17th Sep 2012 at 9:43 am. Reason: Link added. |