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One tube, circa 1961, Holland made by Heerlen Amperex for Hammond,
type 12AX7 / ECC83 vacuum tube
as pictured.

Condition:
Guarantee Good

Silk-Screening:
Please see the photos

Acid Etched Factory/Date Codes:
⊿1J1

Date Code:
1J1

Tube features 14mm-gray-ribbed plates and a 'Large-Halo-Ring' getter on top.

*

Hickok TV-7B/U* tested

Test Result(s)

57/54

minimum recommended for a good tube:
32 / 32

(Triode#1 / Triode#2)

*Hickok TV-7B/U is a mutual conductance(Gm) type tube tester. It does check for mutual conductance which is a more accurate measure of tube's age.

Satisfaction Guaranteed!
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