On Tue, 1 Jul 2008 07:37:17 -0700 (PDT), Keinert
put finger to keyboard and composed:

Hi Frank,
Thanks for the links. I had found these on the Internet also, but as
you noticed, they don't explain the difference in the suffix letters.
I am hoping to find someone with an original databook which gives more
info.
Thanks again,
Kevin.

Wikipedia states that Tung-Sol's business was taken over by New Sensor
Corporation:
http://en.wikipedia.org/wiki/Tung_sol

You might like to try contacting them:
http://www.newsensor.com/ContactUs.aspx

- Franc Zabkar
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