VTVM Mod

[Gary W8PU]

Group..
   Back in the mid 70's I built a Heath IM-18 VTVM and shortly there
after replaced the tubes with the solidstate replacements. I don't
remember exactly how it happened but later one of them failed. Due to
the cost of a replacement, I put the oringinal tubes back into the VTVM
and have been using it that way ever since. Just some trivia.........73.

Gary

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