Make it Shine – Cleaning Tuner Variable Inductors

Many of us have experienced it – the noisy effects of silver sulfide buildup on the variable inductors of our antenna tuners.

What happens is over time a relatively high amount of silver plate on the coils reacts to form nonconductive silver sulfide.

As our tuner’s tap (usually a roller) moves across the coil it often has less than 100% conductivity and becomes noisy.

Put a Shine On It Logo

http://scifun.chem.wisc.edu/HOMEEXPTS/TARNISH.html is the simplist explaination of a method to use Aluminum Foil to draw off the sulphur and restore the silver conductive surface.

Several recent reflector postings have covered the good luck other Amateurs are having using this technique.

An alternative technique I have used is dipping in products intended for the musical instrument industry.  I’ve used s Silver Dip by http://www.ferreestools.com/ Ferrees Tools Logo

In each case take care, wear your protective goggles, aprons and gloves, and be sure to rinse your inductor clean of any chemicals when finished. 

73

Steve
K9ZW

Tagged

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.

%d bloggers like this: