Forums :: Resources :: Features :: Photo Gallery :: Vintage Radio Shows :: Archives
Support This Site: Contributors :: Advertise


It is currently Apr Fri 03, 2020 5:30 am


All times are UTC [ DST ]





Post New Topic Post Reply  [ 3 posts ] 
Author Message
 Post subject: Source for tube retainers?
PostPosted: Sep Sun 22, 2019 1:02 am 
Member
User avatar

Joined: Jan Thu 01, 1970 1:00 am
Posts: 10682
Location: Redlands CA
Does anyone know where I can buy some of these wire tube retainers? They are for tall and short 9 pin tubes, 12AU7 and 6CY7.

Mine are rusty, I can clean off the rust with Naval Jelly, but that leaves them looking rather ugly.

Attachment:
tube-clips.jpg
tube-clips.jpg [ 221.62 KiB | Viewed 388 times ]


Top
 Profile  
 
 Post subject: Re: Source for tube retainers?
PostPosted: Sep Sun 22, 2019 7:58 am 
Member

Joined: Sep Tue 30, 2014 6:08 am
Posts: 5333
Location: Norfolk, VA
Toss them in a vibratory tumbler. They'll clean up fine with plastic pyramid or walnut shell media.

I've used electroless nickel plating to replace the patina/plate them. A thin coat goes a long way. I've also seen Tinnit (PC board tinning solution) used to tin plate the cleaned-up retainers.

You could also jig up a bender with some steel rod/drill bits, and use piano wire to make new retainers. I've done that with relay retainers on commercial refrigeration boards where they were missing. Overbend a bit - the piano wire will spring back.

_________________
Brian
"Capacitor Cosmetologist since 1979"
USN Retired 1984-2006 (Avionics/Cal)


Top
 Profile  
 
 Post subject: Re: Source for tube retainers?
PostPosted: Sep Sun 22, 2019 8:47 am 
Member
User avatar

Joined: Jan Thu 01, 1970 1:00 am
Posts: 10682
Location: Redlands CA
Thanks for the suggestions, but they turned out okay after soaking in a mixture of Naval Jelly and water for a few hours, followed by wire brushing.
I thought they'd be pitted up, but they really aren't bad. You don't really see them in normal use anyhow.


Top
 Profile  
 
Post New Topic Post Reply  [ 3 posts ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: No registered users and 6 guests



Search for:
Jump to:  
































-->


Privacy Policy :: Powered by phpBB