UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > General Vintage Technology > Components and Circuits

Notices

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.

Reply
 
Thread Tools
Old 14th Jan 2019, 5:43 am   #1
radiograham
Tetrode
 
Join Date: Oct 2017
Location: Manchester, UK.
Posts: 82
Default Can anyone identify this coil.

Hi Everyone,please can anybody tell me what this coil was out of?.
Attached Thumbnails
Click image for larger version

Name:	coil 001.jpg
Views:	189
Size:	76.9 KB
ID:	176384   Click image for larger version

Name:	coil 002.jpg
Views:	177
Size:	46.9 KB
ID:	176385   Click image for larger version

Name:	coil 003.jpg
Views:	162
Size:	74.0 KB
ID:	176386   Click image for larger version

Name:	coil 004.jpg
Views:	167
Size:	91.1 KB
ID:	176387  
radiograham is offline   Reply With Quote
Old 14th Jan 2019, 9:40 am   #2
Martin G7MRV
Heptode
 
Join Date: May 2008
Location: Selby, North Yorkshire, UK.
Posts: 550
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.
__________________
I got food in ma belly and a license for ma telly

My Blog - http://g7mrv.blogspot.com
Martin G7MRV is offline   Reply With Quote
Old 14th Jan 2019, 9:42 am   #3
Martin G7MRV
Heptode
 
Join Date: May 2008
Location: Selby, North Yorkshire, UK.
Posts: 550
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?
__________________
I got food in ma belly and a license for ma telly

My Blog - http://g7mrv.blogspot.com
Martin G7MRV is offline   Reply With Quote
Old 14th Jan 2019, 11:32 am   #4
TrevorG3VLF
Octode
 
Join Date: Apr 2011
Location: Matlock, Derbyshire, UK.
Posts: 1,121
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.
TrevorG3VLF is offline   Reply With Quote
Old 14th Jan 2019, 12:58 pm   #5
G8HQP Dave
Dekatron
 
Join Date: Sep 2008
Location: Solihull, West Midlands, UK.
Posts: 4,589
Default Re: Can anyone identify this coil.

Yes, I would guess something in the low VHF region - possibly 30-60MHz.
G8HQP Dave is offline   Reply With Quote
Old 15th Jan 2019, 3:45 am   #6
radiograham
Tetrode
 
Join Date: Oct 2017
Location: Manchester, UK.
Posts: 82
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.
radiograham is offline   Reply With Quote
Old 15th Jan 2019, 11:33 am   #7
ms660
Dekatron
 
ms660's Avatar
 
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 7,187
Default Re: Can anyone identify this coil.

The number suggests aircraft electronics bits according to Google.

Lawrence.
ms660 is online now   Reply With Quote
Old 15th Jan 2019, 7:39 pm   #8
G6Tanuki
Dekatron
 
G6Tanuki's Avatar
 
Join Date: Apr 2012
Location: Wiltshire, UK.
Posts: 6,708
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.
G6Tanuki is offline   Reply With Quote
Reply

Thread Tools



All times are GMT +1. The time now is 12:08 pm.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Copyright ©2002 - 2018, Paul Stenning.