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| Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders. |
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Thread Tools |
4th Apr 2024, 2:13 pm
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#1 |
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Hexode
Join Date: Oct 2007
Location: Bristol, UK.
Posts: 459
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Marconi TF144H Thermocouple
The brittle wies have broken off on mine so now the thermocouple is u/s.
I see from previous posts that they were hard to source 10 years ago so I don't suppose there's much chance in finding one now. I remember reading that someone has come up with a circuit to replace this but I haven't manage to find it yet. Any help much appreciated. Don m5aky |
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4th Apr 2024, 9:29 pm
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#2 |
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Nonode
Join Date: May 2003
Location: Belper Derbyshire
Posts: 2,099
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Re: Marconi TF144H Thermocouple
Do you have a picture of it?
I don't suppose it is possible to attempt to repair it using some conductive paint and some fine tinned copper wire to make a connection Christopher Capener
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Interests in the collection and restoration of Tefifon players and 405 line television |
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5th Apr 2024, 7:08 am
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#3 |
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Hexode
Join Date: Oct 2007
Location: Bristol, UK.
Posts: 459
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Re: Marconi TF144H Thermocouple
Hi Christopher.
Thanks for the reply. I have managed to solder to one of the wires on the side but the two wires on the top are too close together and they have both fractured flush with the glass. Don |
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5th Apr 2024, 7:47 pm
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#4 |
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Hexode
Join Date: Jan 2012
Location: Edinburgh, UK
Posts: 319
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Re: Marconi TF144H Thermocouple
A picture would be useful. I've got a number of these in drawers from junk-boxes of other people that I have acquired, mostly STC but I think one or two acorn style ones from some Marconi gear.
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6th Apr 2024, 8:28 am
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#5 |
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Hexode
Join Date: Oct 2007
Location: Bristol, UK.
Posts: 459
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Re: Marconi TF144H Thermocouple
OK, Sorted out the camera lead so here's the photo
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6th Apr 2024, 7:06 pm
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#6 |
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Hexode
Join Date: Jan 2012
Location: Edinburgh, UK
Posts: 319
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Re: Marconi TF144H Thermocouple
I've got one that looks like that... see photo
Source and condition unknown but it seems to have 4 intact leads. If you think it might be useful send me a PM. Alan |
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7th Apr 2024, 8:04 am
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#7 |
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Hexode
Join Date: Oct 2007
Location: Bristol, UK.
Posts: 459
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Re: Marconi TF144H Thermocouple
Hi Alan.pm sent.
I never found the article in spite of a few days of searching. Perhaps I dreamt it! Don m5aky |
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7th Apr 2024, 2:40 pm
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#8 |
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Dekatron
Join Date: Nov 2010
Location: Oxford, UK.
Posts: 5,644
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Re: Marconi TF144H Thermocouple
Specs of the range attached
Craig
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Doomed for a certain term to walk the night |
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7th Apr 2024, 2:49 pm
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#9 |
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Dekatron
Join Date: Nov 2010
Location: Oxford, UK.
Posts: 5,644
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Re: Marconi TF144H Thermocouple
Suspect I downloaded that from this 2016 thread https://www.vintage-radio.net/forum/showthread.php?t=123343
Craig
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Doomed for a certain term to walk the night |
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