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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 |
1st Jun 2020, 10:34 pm | #1 |
Pentode
Join Date: Nov 2019
Location: Tewkesbury, Gloucestershire, UK.
Posts: 173
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Marconi instrument mystery object
vintage old marconi instrument , has number of TF711A wondering if anyone knows what this is or may have been used for or possibily part of radio ? as purchased with lot radio parts
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1st Jun 2020, 10:42 pm | #2 |
Pentode
Join Date: Jan 2009
Location: Liverpool, Merseyside, UK.
Posts: 149
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Re: Marconi instrument mystery object
Hi
Looks like a galvonometer to me. That is a sensitive centre zero meter. Ian |
2nd Jun 2020, 11:57 am | #3 |
Heptode
Join Date: Mar 2008
Location: Camberley, Surrey, UK.
Posts: 800
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Re: Marconi instrument mystery object
I can Answer this one!
The TF711A is described in "Marconi Instrumentation" Vol 3 page 36, Dec 1951 It says Suspended Coil Galvanometer of the D'Arsonval type with double taut suspension. It was made for the TF511D & TF717A laboratory PH meters and was not available as a separate item. regards Brian |
2nd Jun 2020, 4:11 pm | #4 |
Pentode
Join Date: Nov 2019
Location: Tewkesbury, Gloucestershire, UK.
Posts: 173
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Re: Marconi instrument mystery object
Thank you Ian and Brian was wondering what it was
Best Regards Clive |