Jan 6AC7 w 1953 vintage tubes rca nos tested

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Subject: Jan 6AC7 w 1953 vintage tubes rca nos tested
These new old stock JAN CRC 6AC7W sharp-cutoff metal pentode tubes have never been used, stored away for years. Made by RCA for the U.S. Joint Army/Navy. Packed in generic military type boxes dated 1953 with wear. All tubes tested as strong on my Hickok tester: 5300 to 6000 in mutual conductance where 5000 is average new.


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