Channel Master Contact Cleaner
October 1960 Electronics World

October 1960 Electronics World Table of Contents Wax nostalgic about and learn from the history of early electronics. See articles from Electronics World, published May 1959 - December 1971. All copyrights hereby acknowledged.

Ask anyone who has ever asked me to fix something electrical or electronic and they will tell you my motto on such things, born of extensive experience, is that the vast majority of the problems are caused by poor electrical contacts of one form or another. The culprit can be a dirty or broken connector, a cold or broken solder joint, a dirty potentiometer (contact between wiper and resistor), etc. I have repaired everything from ceiling lights, to car starters, to kitchen appliances, to large screen TVs simply by finding and repairing connections. When possible, I always do a final cleaning with isopropyl alcohol and then spray with a silicon contact protector. This Contact Shield product from Channel Master would be a good choice. I can honestly say I cannot think of a single instance where the restored connection failed again. Of course sometimes it is not that simple, but enough that my initial approach to troubleshooting - unless a broken or burnt component is immediately apparent - is to unplug and inspect connectors (then plug-unplug-plug to wipe contacts clean), flip switches on-off a few times while applying various directional forces (left-right, up-down, twisting), tugging on wires, etc. People's eyes light up in amazement when a sophisticated piece of equipment starts working after doing so. Then, I meticulously test and clean all other easily accessible connections. If that doesn't work, the multimeter comes out and if necessary, the o-scope.

Channel Master Contact Cleaner

"BEST OF ALL CONTACT SPRAYS"

Channel Master introduces the first triple-action spray!

Channel Master set out to provide a superior cleaner, lubricant, and protector for electrical contacts. Contact Shield was the result.

To verify our own estimates of the product's effectiveness, Contact Shield was submitted to a nationally known independent testing laboratory.

This famous testing organization made a thorough study of Contact Shield, as well as of nine similar products on the market. The above findings demonstrate conclusively that this new Channel Master product is the most reliable contact spray you can 'buy!

Here's why Contact Shield is best:

   • eliminates background and resistance noises

   • is safer. Will not ignite, flash, or cause short circuits

   • propellant is actually a fire extinguisher

   • contains no solvents to attack plastics

   • performs at temperatures from - 90°F to + 320°F

CHANNEL MASTER works wonders in sight and sound Ellenville, New York

Posted March 5, 2024
(updated from original post on 12/1/2017)