[Boatanchors] Miniature tube socket contact brushes-Steel one?

[Yong Surk Lee]

I have been using OralB interdental brushes for cleaning my 
teeth as well as tube sockets. When I had only one brush left I used it for the 
tube socket and cleaned it  then I used for my teeth. 
Sometimes when tube socket pins had stubborn dark corrosion, it
required a brush with steel bristle. Where can I find the brush with steel bristle 
small enough to use for tube socket? I have not found anything so far.
Ebay has a lot of small tube brushes with nylon bristle for tattooing purpose. 
Search for 'tattoo brush' on ebay.
--- Original Message ---
From    : "Bill Cotter"<n4lg at qx.net>
To      : collins at listserve.com, boatanchors at mailman.qth.net
Date    : 2009/01/12 Monday AM 3:52:22
Subject : [Boatanchors] Miniature tube socket contact brushes

Several years ago I had my Hickok-6000 calibrated by one of the 
last of the tube-tester technicians, I have since forgotten his 
name. Anyway, he sold a selection of tube socket contact-cleaning 
brushes for a lot of dollars, so much so I never purchased any.

Over the years I've tried a number of methods for cleaning the 
contacts with mixed results. Whatever tool I used was in 
conjunction with ethyl-alcohol, DeOxit or a Caig product. 
Generally, the best device was a series of small pipe cleaners 
designed for art work and sold in a local hobby shop.

This weekend I found the best tool so far and it was right under my 
nose in the grocery store. While looking for a stiff floss for my 
wife, I found some very tiny, tapered, nylon-bristled interdental 
brushes. These are sold in the floss section under the GUM brand, 
stock number 3614, in a green blister pack for $2.50 (seven brushes 
and holder).

A drop of DeOxit on the tip of the brush easily cleans the tube 
socket contact. And, they can be washed gently and reused.

73 Bill N4LG

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