Selling off some items from my personal tube collection to finance other endeavors. I have been collecting tubes for the past 15 years and use them for amplifiers and pro audio equipment.

    * Both tubes were removed from a fully functional Orange guitar amplifier in the early 2010s but have not been used since. They were in a set of four tubes, but one of the four tubes physically cracked and lost vacuum, thus no longer a quad...

    * Silkscreen / print is quite worn down, but was originally branded with the "Orange" amplifiers logo. There is some sticker residue from the Orange amp factory with matching information. I believe the tubes were probably manufactured between 2003 and 2006, but that is just speculation / no guarantees.

The tubes are tested on a B&K 666 Dyna Jet emissions tester for "quality", shorts, leaks and emissions. The tester was calibrated in March 2024.  The test results were the same for both tubes.

• Tube #1: 90
• Tube #2: 90

(on my B&K 666, new in box / "bogey" 6550 / KT88 tests around/between 91 to 94, 65/65 is minimum "good", 50/50 and below is "replace")

The tubes HAVE NOT been tested for audio quality / signal or microphonics, or biasing.

Again, the tubes are tested on simple emissions-only testers, and not tested for transconductance. It is entirely possible that you may have different results on a more powerful tester. The tubes are sold as-is / as described / as pictured with no returns. No guarantees.

Tubes will be packaged in generic or recycled boxes. Items will be packed and shipped with tender loving care to ensure safe delivery. Thank you!