[Elecraft] head mounted lens or magnifier for SMT projects

[Ron D'Eau Claire]

Some Optivisors have a simple friction grip headband adjustment that I found
has the same problem. The good ones (IMHO) have a knob on back for setting
the tension on the headband. 

Ron AC7AC

-----Original Message-----

...I have purchased two different head-mounted lenses at hamfests.  They
were both low quality and neither would stay on my head.  I still use one,
but am constantly having to tighten it.

I am going to purchase one of these Optivisors and get rid of the junk.  ;)

73,
Joel - W4JBB