Pair of 12AX7 Pre-Amp Tubes - $20 (Chicago Pilsen)

W 21st St near S Carpenter

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condition: good

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$20/cash for the pair.
Pick up at W. 21st & S. Carpenter, Chicago, IL 60608 (I am in a commercial building).

One is unbranded, the other is a Ruby re-brand. The Ruby tested slightly stronger than the unbranded tube. Used, but still have a lot of life left in them (tested for leakage, short, emission).

Electric guitar tube amplifier.

post id: 7865507769

posted: 2025-07-13 19:54

updated: 2025-09-02 20:02

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Pair of 12AX7 Pre-Amp Tubes - musical instruments - by owner - sale...

$20/cash for the pair. Pick up at W. 21st & S. Carpenter, Chicago, IL 60608 (I am in a commercial building). One is unbranded, the other is a Ruby re-brand. The Ruby tested slightly stronger...