Quote:
Originally Posted by Celt
Tubes can last a very, very long time depending on what their function is and how many hours are on them. RF and pre-amp tubes generally have long lives, whereas output tubes and rectifers have shorter lives. Their are metal tubes, but you are probably seeing shields placed over the glass envelopes.
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Yes. Shields over Glass Tubes. What do you think this unit is worth Celt? Or should I ask this question in Dollars and Sense?