ANTIQUE-RADIO-LAB
Welcome, please log-in to participate in this (your) forum, by logging in you agree to abide by the rules of this forum. Until you make your FIRST Login and post, you cannot PM a Member.
ANTIQUE-RADIO-LAB

Antique Radio Forum for Collectors antique-radio-lab.forumotion.com
 
HomeHome  RegisterRegister  Log inLog in  FAQFAQ  PublicationsPublications  SearchSearch  
Can't Log In?: 1st. thing is to clean out your cookies. if that doesn't work , click on Contact field.
(registration and/or Login Help ONLY) For other questions go to our FAQs link above.

Share | 
 

 Broken tube pins (Or Saving private Pins)

Go down 
AuthorMessage
FrankB
Moderator
Moderator
avatar

Join date : 2010-11-22

PostSubject: Broken tube pins (Or Saving private Pins)   September 28th 2018, 12:57 am

If you have been repairing or building for any length of time with tubes, it is 99% likely you will find a job where the tube socket pin has broken off.

I used to grouse and then replace the entire socket, which could be a long and nasty job.
 Well, unless you are dealing with the Septal series of sockets, 4,5,6, & 7 pin large old WAFER types, Phenolic wafer miniature, and most loctal; there is a easy repair solution.

There are a couple of ways to accomplish this repair.

Please keep in mind this works on octal, some 4, 5, 6, 7, (Primarily Bakelite or ceramic types) loctal, Non-wafer 7, 8, 9, 10, 11, (Yes, there IS an 11 pin socket. primarily used for relays & interconnects), and 12 pin types.

When scrapping out old B&W & Color TV sets and some radios, quite often there are unused pins on many of the sockets. Most can be removed from the socket with a pair of needle nose pliers and a pick.
 Soldered on ones can be removed, but it's a really fussy job.
 
Note:There are at least 3 different styles of socket pins on Octals alone. Some are NOT interchangeable. At least 2 are.

Flatten the retaining "bump" on the bottom of the pin and it will come out easily.

Then simply remove the broken pin from the socket and insert the replacement pin, solder the wires to it and you are done.

 Some pins get surface "gunk" on them so I use a pencil type typewriter eraser to clean them up well before fluxing & soldering to them. Easiest done before putting the pin back into the socket under repair.

I also keep a pile of broken NOS and used sockets and pins around for just this thing.

 The pins from the wafer type Septal series that are in broken sockets can be saved also.
 I have made extension cables for servicing radios and TV sets from many different sizes of them. (I remember having to make up special ones for the old Philco B&W 2 piece chassis. What a PITA nightmare!).

I can't say I originated this idea, but I have never heard or read of anyone else doing this.
I just got lazy after my 5th or 6th entire socket replacement. My replacement time factor went from about an hour + down to (typically) 10-15 minutes from start to finish. Shocked

I DO NOT recommend this method if the socket has any sign of carbon arcing or tracking on it. Replacement is the only cure. Also the ceramic types can get conductive carbon tracks on them too, especially in transmitters, or if the tube melted down, caught fire, etc.
Back to top Go down
 
Broken tube pins (Or Saving private Pins)
Back to top 
Page 1 of 1
 Similar topics
-
» Two Dreams before the straight Pins in Mouth Dream are they related ???
» PCB Jumper pins
» a pair of broken wine glasses
» Young Woman Loses Breathing Tube In Dream...help please
» Broken Jade Bangle got mended back...

Permissions in this forum:You cannot reply to topics in this forum
ANTIQUE-RADIO-LAB :: Radio Repair Bench :: Hints & Kinks-
Jump to: