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 > Hints, Tips and Solutions (Do NOT post requests for help here)

Notices

Hints, Tips and Solutions (Do NOT post requests for help here) If you have any useful general hints and tips for vintage technology repair and restoration, please share them here. PLEASE DO NOT POST REQUESTS FOR HELP HERE!

Closed Thread
 
Thread Tools
Old 5th Apr 2019, 3:01 pm   #21
wd40addict
Octode
 
wd40addict's Avatar
 
Join Date: May 2009
Location: Stevenage, Herts. UK.
Posts: 1,515
Default Re: Refixing loose valve bases

I had a KT66 with a loose base. I waited for a sunny day, went outside and poured a little meths into the base (with valve upright). Then left it for a few hours.

On my return the valve was solidly re-bonded to the base!

How it works: The meths dissolves the shellac, but then slowly evaporates leaving the shellac bonded in its new location.
wd40addict is online now  
Old 11th Jun 2019, 9:27 pm   #22
vinrads
Dekatron
 
Join Date: Feb 2009
Location: Chesterfield, Derbyshire, UK.
Posts: 3,737
Default Re: Refixing loose valve bases

What a good idea. must try it sometime . Mick.
vinrads is offline  
Old 26th Jun 2019, 12:59 am   #23
whiskas
Octode
 
whiskas's Avatar
 
Join Date: Mar 2016
Location: Knutsford, Cheshire, UK.
Posts: 1,488
Default Re: Refixing loose valve bases

I'll second the use of pound shop 2-part epoxy.
Have manged many successeful base repairs with it myself

By the way, I usually masking tape the areas where I don't want the glue to go, saves a possibly sticky clean up job later!
__________________
...where on earth did that spring/screw go??
whiskas is offline  
Old 26th Jun 2019, 7:57 pm   #24
g4aaw pete
Heptode
 
g4aaw pete's Avatar
 
Join Date: Jan 2008
Location: Birchington Kent, UK.
Posts: 595
Default Re: Refixing loose valve bases

One of my CR100s had a 5Z4G with a loose base.
I used 'No Nails'.
Not pretty, but effective. Hasn't cracked the glass yet.
Attached Thumbnails
Click image for larger version

Name:	5Z4G a.JPG
Views:	156
Size:	47.0 KB
ID:	185784   Click image for larger version

Name:	5Z4G b.JPG
Views:	147
Size:	40.1 KB
ID:	185785  
__________________
Regards
Pete
g4aaw pete is offline  
Old 26th Jun 2019, 11:39 pm   #25
McMurdo
Dekatron
 
McMurdo's Avatar
 
Join Date: Jun 2009
Location: Staffordshire Moorlands, UK.
Posts: 5,263
Default Re: Refixing loose valve bases

I've always used araldite too, also on CRT bases without incident.
However I've come across Serious Glue, its glass-clear, very sticky and goes off quickly (sometimes in the tube!!). Spent ages peeling it off my fingers.

I suppose auto windscreen sealant would be the ideal thing. The downside is that once opened, the tube tends to go off very quickly.
__________________
Kevin
McMurdo is offline  
Old 30th Jun 2019, 6:20 pm   #26
valveaudio
Hexode
 
Join Date: Feb 2006
Location: Diss, Norfolk, UK.
Posts: 386
Default Re: Refixing loose valve bases

I have used Loctite Body Filler (Halfords) with some success on KT66's, especially the ones that need a complete base replacement such as where the centre spigot on the base is broken off. I have never had one break.

I usually use a junior hacksaw and carefully cut the base in quarters and carefully loosen it from the glass, you can then unsolder the wires keeping them in the correct position for the new base.

Trevor
valveaudio is offline  
Closed Thread

Thread Tools



All times are GMT +1. The time now is 1:16 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.