This Fender branded 12AX7/7025 Dual Triode Vacuum tube was removed from a 1970s amplifier.
I can't confirm the original manufacturer but Fender never made their own valves and used valves manufactured by Sylvania , GE , Phillips etc with their own logo printed on the glass.
7025 valves we're made to industrial low hum standards.
This vakce has been tested on an AVO Valve Characteristic meter Mk3 and tests good.
A1 gm = 1.45mA/V ( Typical 1.6) Ia = 1.mA
A2 gm = 1.45mA/V Ia = 1mA
This valve has matched triodes and would make an ideal phase inverter.
I have tested ot in the V1 postion of a guitar amplifier and think it sounds good.

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Post and packing £3.38
Collection possible after payment via PayPal from Gateshead Tyne and Wear

Ebay description below-

This 1970's Fender Branded 12AX7/ 7025 Vacuum Tube is a vintage part that is ideal for enthusiasts of vintage sound and vision equipment. The tube, made by the renowned brand Fender, is of the 12AX7 model, known for its high-quality performance. With a tested-good status, this vacuum tube is sure to enhance the sound and vision experience for those looking to restore or maintain the authentic sound of classic equipment from the 1970s.