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Old 14th Jan 2019, 5:43 am   #1
radiograham
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Default Can anyone identify this coil.

Hi Everyone,please can anybody tell me what this coil was out of?.
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Old 14th Jan 2019, 9:40 am   #2
Martin G7MRV
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Default Re: Can anyone identify this coil.

Looks like some form of tropical hardwood to me,

'Ive a bayonet fitting mains plug (to go into light fittings) turned from a similar looking wood.
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Old 14th Jan 2019, 9:42 am   #3
Martin G7MRV
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Default Re: Can anyone identify this coil.

Sorry - I misread your post! I thought you were asking what the coil was made out of!

Odd looking connector, certainly not seen one like that myself before. It looks quite sturdily built, possibly military?
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Old 14th Jan 2019, 11:32 am   #4
TrevorG3VLF
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Default Re: Can anyone identify this coil.

Looks like a base for a whip aerial to me, possibly about 30MHz. Check the resonant frequency with a dip meter.
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Old 14th Jan 2019, 12:58 pm   #5
G8HQP Dave
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Default Re: Can anyone identify this coil.

Yes, I would guess something in the low VHF region - possibly 30-60MHz.
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Old 15th Jan 2019, 3:45 am   #6
radiograham
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Default Re: Can anyone identify this coil.

Thanks for the thoughts on this,i will indeed check it with my qmax gdo,i hoped someone might have recognised it from somewhere. Graham.
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Old 15th Jan 2019, 11:33 am   #7
ms660
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Default Re: Can anyone identify this coil.

The number suggests aircraft electronics bits according to Google.

Lawrence.
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Old 15th Jan 2019, 7:39 pm   #8
G6Tanuki
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Default Re: Can anyone identify this coil.

That coax-connector is the same type as was used for the innterconnecting cables in the 1950s R4187 receiver/T4188 transmitter - as used in the V-bombers.

I don't know what it was officially designated as but it really does incicate that your tuned-circuit was part of some 1950s aviation-thing - possibly made by ST&C as they were then known.
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