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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 |
7th Feb 2018, 11:24 pm | #1 |
Nonode
Join Date: May 2007
Location: Redruth, Cornwall, UK.
Posts: 2,580
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GPO Heat Shunt?
Hi.
I came across this item (attached pic) in a box of miscellaneous junk items at the local car boot sale. It appears to be made from lacquered aluminium. As a guess, it looks like a heat shunt used when soldering vulnerable germanium diodes and transistors. On one handle there's stamped "GPO 1966." On the other handle is stamped SPEARETTE" which I take is the manufacturer. Can anyone confirm my suggestion that it's a heat shunt? Regards Symon. |
7th Feb 2018, 11:56 pm | #2 |
Dekatron
Join Date: Jun 2009
Location: Staffordshire Moorlands, UK.
Posts: 5,276
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Re: GPO Heat Shunt?
Google shows that Spearette was a brand name of Spear Engineering Co. of Surrey, who made aluminium-based tools for the radio and allied industries.
Products include valve-pin straighteners and jigs for wire harness making
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Kevin |
8th Feb 2018, 12:03 am | #3 |
Nonode
Join Date: Jan 2010
Location: Edinburgh, UK.
Posts: 2,008
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Re: GPO Heat Shunt?
I have an identical one here that came from a British Railways signal and telegraph technician. When he gave it to me he described it as a 'heat shunt' though he never said what he used it on. Your assumption would seem to be correct.
Al
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8th Feb 2018, 10:30 am | #4 |
Nonode
Join Date: May 2007
Location: Redruth, Cornwall, UK.
Posts: 2,580
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Re: GPO Heat Shunt?
Hi
Thanks for your replies and the info. It looks to be a handy little item especially when soldering small germanium diodes. Regards Symon |