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

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > Specific Vintage Equipment > Vintage Amateur and Military Radio

Notices

Vintage Amateur and Military Radio Amateur/military receivers and transmitters, morse, and any other related vintage comms equipment.

Closed Thread
 
Thread Tools
Old 14th Oct 2011, 3:54 pm   #1
ms660
Dekatron
 
ms660's Avatar
 
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
Default Signal Corp. LS-3 Speaker

Hello all, I have a Signal Corp. LS-3 speaker and the input jack is smaller than the standard 1/4" jack any one know which jack this is.

Lawrence.
ms660 is offline  
Old 14th Oct 2011, 4:11 pm   #2
G4XWDJim
Octode
 
G4XWDJim's Avatar
 
Join Date: Oct 2008
Location: Littlehampton, West Sussex, UK.
Posts: 1,465
Default Re: Signal Corp. LS-3 Speaker

Those smaller jacks are quite common on American equipment. I think they're nearly always 3 contact, a bit like a stereo plug. I can't find one to take a photo of but they shouldn't be too difficult to find.

A duff mic. like a T17 would yield one.

Jim
G4XWDJim is offline  
Old 14th Oct 2011, 4:22 pm   #3
ms660
Dekatron
 
ms660's Avatar
 
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
Default Re: Signal Corp. LS-3 Speaker

Thanks for the reply Jim, yes I think they might be common enough for me to obtain one from somewhere, failing that I should be able to cobble up something. I've got it working on a match stick jobbie at the moment.

Thanks.

Lawrence.
ms660 is offline  
Old 14th Oct 2011, 6:13 pm   #4
OscarFoxtrot
Heptode
 
OscarFoxtrot's Avatar
 
Join Date: Apr 2011
Location: Edinburgh, UK.
Posts: 805
Default Re: Signal Corp. LS-3 Speaker

Quote:
Originally Posted by pwdrive View Post
Hello all, I have a Signal Corp. LS-3 speaker and the input jack is smaller than the standard 1/4" jack any one know which jack this is.

Lawrence.
If it's 4.4 mm (0.173") dia. then it's probably a "bantam" jack.

Eg Farnell
OscarFoxtrot is offline  
Old 14th Oct 2011, 6:47 pm   #5
ms660
Dekatron
 
ms660's Avatar
 
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
Default Re: Signal Corp. LS-3 Speaker

Thanks, I have also now been informed that the jack plug to fit the LS-3 is commonly known as a PL68.

(Addition) According to my calipers the socket fitted to the speaker is just a fraction over 5 mm dia.

Lawrence.

Last edited by ms660; 14th Oct 2011 at 6:55 pm. Reason: addition
ms660 is offline  
Old 14th Oct 2011, 6:55 pm   #6
M0FYA Andy
Nonode
 
Join Date: May 2007
Location: Preston, Lancashire, UK.
Posts: 2,510
Default Re: Signal Corp. LS-3 Speaker

Lawrence.
FairRadio have them listed at $8 new, $6 used............
I think they have a $20 minimum order.
Andy
M0FYA Andy is offline  
Old 14th Oct 2011, 7:02 pm   #7
ms660
Dekatron
 
ms660's Avatar
 
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
Default Re: Signal Corp. LS-3 Speaker

Thanks Andy. I see they have the LS-3's also, although I am happy with one I have.

Lawrence.
ms660 is offline  
Old 14th Oct 2011, 7:21 pm   #8
OscarFoxtrot
Heptode
 
OscarFoxtrot's Avatar
 
Join Date: Apr 2011
Location: Edinburgh, UK.
Posts: 805
Default Re: Signal Corp. LS-3 Speaker

.206" COMMERCIAL HEADSET MIC PLUG
£8.93 here; P&P looks reasonable. No connection with / experience of the seller.
http://shop1.actinicexpress.co.uk/sh...php?section=27
OscarFoxtrot is offline  
Old 14th Oct 2011, 7:22 pm   #9
M0FYA Andy
Nonode
 
Join Date: May 2007
Location: Preston, Lancashire, UK.
Posts: 2,510
Default Re: Signal Corp. LS-3 Speaker

I dread to think what the postage for an LS-3 would be from the US!
Andy
M0FYA Andy is offline  
Old 14th Oct 2011, 7:25 pm   #10
ms660
Dekatron
 
ms660's Avatar
 
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
Default Re: Signal Corp. LS-3 Speaker

Andy...PM me if you want to know!

Lawrence.
ms660 is offline  
Old 14th Oct 2011, 7:32 pm   #11
ms660
Dekatron
 
ms660's Avatar
 
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
Default Re: Signal Corp. LS-3 Speaker

Quote:
Originally Posted by OscarFoxtrot View Post
.206" COMMERCIAL HEADSET MIC PLUG
£8.93 here; P&P looks reasonable. No connection with / experience of the seller.
http://shop1.actinicexpress.co.uk/sh...php?section=27
Looks like that's the one.

Lawrence.
ms660 is offline  
Old 21st Oct 2011, 9:45 am   #12
vosperd
Hexode
 
vosperd's Avatar
 
Join Date: Oct 2007
Location: Bristol, UK.
Posts: 440
Default Re: Signal Corp. LS-3 Speaker

I think it is 3/16".
If you are careful you can drill the socket out to 1/4" if you are don't mind it not being original.
Don m5aky
vosperd is offline  
Old 21st Oct 2011, 5:05 pm   #13
ms660
Dekatron
 
ms660's Avatar
 
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
Default Re: Signal Corp. LS-3 Speaker

Hello Don I have found a source for the Jack Plug, years ago I would not hesitate to drill the socket out but not now, one of the reasons is that I can't get the socket out to do an operation like that as despite removing all the cabinet screws the front plate is well sealed on to the main box with the original MFP treatment and is stuck solid.

Lawrence.
ms660 is offline  
Closed Thread

Thread Tools



All times are GMT +1. The time now is 4:08 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 - 2024, vBulletin Solutions, Inc.
Copyright ©2002 - 2023, Paul Stenning.