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 > General Vintage Technology > Success Stories

Notices

Success Stories If you have successfully repaired or restored a piece of equipment, why not write up what you did and post details here. Particularly if it was interesting, unusual or challenging. PLEASE DO NOT POST REQUESTS FOR HELP HERE!

Closed Thread
 
Thread Tools
Old 27th Jun 2023, 8:20 am   #1
Beardyman
Hexode
 
Beardyman's Avatar
 
Join Date: Jan 2018
Location: Portsmouth, Hampshire, UK.
Posts: 419
Default HMV ls7

This extension speaker came up a lot better than I was expecting.
The cloth on the front & back was absolutely rotten & beyond any help but I did find something similar in one of our local charity shops.
The unit is quite well made with the speaker mounted on a removeable baffle board, all the mounting screws go into captive nuts set into the wood including the back panel.
The back panel was held on with two wood screws, I changed the screws for modern ones for the time being until I can find some age related parts.
The speaker still had it's original dust cloth around it but that was disintegrating too, my better half volunteered to make a new one, result!
Removal of the speaker showed a cone & suspension in very good overall condition, no rubbing on the center pole either.
Voice coil reads around the 3-4 ohm mark.
At some point in time the matching transformer had been removed.
I haven't completed a project for quite a while so this was a nice gentle re-introduction!
I've always wanted a cathedral shaped woody in my collection but the radios are a bit beyond my pocket money!
This was a good compromise.
Despite much hunting round t'interweb I can't come up with even so much as an advert for it.
It is, at the moment, hooked up to my Defiant MSH902, sounds good too.
Attached Thumbnails
Click image for larger version

Name:	20230614_180009.jpg
Views:	143
Size:	41.3 KB
ID:	280367   Click image for larger version

Name:	20230614_180029.jpg
Views:	121
Size:	31.1 KB
ID:	280368   Click image for larger version

Name:	20230614_180103.jpg
Views:	115
Size:	20.0 KB
ID:	280369  
__________________
The difference between stupidity and genius is that genius has its limits. (Einstein)
Beardyman is offline  
Old 27th Jun 2023, 9:09 am   #2
vinrads
Dekatron
 
Join Date: Feb 2009
Location: Chesterfield, Derbyshire, UK.
Posts: 3,710
Default Re: Hmv ls7

That looks superb I think the cloth is in keeping very well done . Mick.
vinrads is offline  
Old 27th Jun 2023, 10:18 pm   #3
McMurdo
Dekatron
 
McMurdo's Avatar
 
Join Date: Jun 2009
Location: Staffordshire Moorlands, UK.
Posts: 5,253
Default Re: HMV ls7

I assume you repolished the cabinet, how did you do it?
__________________
Kevin
McMurdo is offline  
Old 28th Jun 2023, 3:39 pm   #4
Beardyman
Hexode
 
Beardyman's Avatar
 
Join Date: Jan 2018
Location: Portsmouth, Hampshire, UK.
Posts: 419
Default Re: HMV ls7

McMurdo,
The original varnish had gone black with age as is the case with something of this age.
That was stripped off using Acetone & 0000 wire wool, a mucky smelly task.
As the old varnish liquifies it tends to fill the grain of the veneer nicely.
Let everything dry out for a few days then a light rub over with clean wire wool.
Two coats of Danish Oil leaving 48 hours between coats & voila, job done.
My cabinet finishing skills are, at best, amateur beginner but this one turned out ok.
__________________
The difference between stupidity and genius is that genius has its limits. (Einstein)
Beardyman is offline  
Old 29th Jun 2023, 8:07 am   #5
JonSnell
Hexode
 
JonSnell's Avatar
 
Join Date: Oct 2019
Location: Weymouth, Dorset, UK.
Posts: 464
Default Re: HMV ls7

Very nice indeed. Good job!
__________________
Valve equipment repairs since 1968 https://jonsnell.co.uk
JonSnell is offline  
Old 30th Jun 2023, 12:44 pm   #6
Beardyman
Hexode
 
Beardyman's Avatar
 
Join Date: Jan 2018
Location: Portsmouth, Hampshire, UK.
Posts: 419
Default Re: HMV ls7

Just for comparison sake, here's the thread I posted when I first got this item home, the phone camera makes the finish look far lighter than it was!

https://www.vintage-radio.net/forum/...d.php?t=200697
__________________
The difference between stupidity and genius is that genius has its limits. (Einstein)
Beardyman is offline  
Old 2nd Jul 2023, 4:14 pm   #7
Phil G4SPZ
Dekatron
 
Phil G4SPZ's Avatar
 
Join Date: Apr 2005
Location: Bewdley, Worcestershire, UK.
Posts: 4,728
Default Re: HMV ls7

A fine-looking job!

I have re-finished several sets using Danish Oil and I like the finish it produces, plus it’s relatively easy to apply and gives good results. One tip I tried and which gave an even higher gloss finish is, when fully hard (2-3 weeks) to polish the surface with something like Liberon Burnishing Cream.
__________________
Phil

Optimist [n]: One who is not in possession of the full facts
Phil G4SPZ is offline  
Closed Thread

Thread Tools



All times are GMT +1. The time now is 11:27 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.