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Vacuum Tubes, Other

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Sixteen 12AU7A Pre-owned Tubes +3 photos

Sixteen 12AU7A Pre-owned Tubes

Yesterday 9:29 AM - Other
Sixteen pre-owned 12AU7A vacuum tubes all made in USA.  All tested 60-70 (both triodes) on my Beckman 607 tube tester.  You can buy them all or by brand etc.  The 12AU7A was used in various audio ...
Sylvania Type 56 Vacuum tube NOS Tested NOS 100% +3 photos

Sylvania Type 56 Vacuum tube NOS Tested NOS 100%

Yesterday 9:05 AM - Other
... original box, and no filament deposits and has never been tested. Please expect the tube to have a small amount of used Since vacuum tubes were made 30 - 70 years ago New Old Stock or Used may have ...
Vintage Lot of 27 Radio Tubes Raytheon Untested +3 photos

Vintage Lot of 27 Radio Tubes Raytheon Untested

Wednesday, March 27, 9:10 AM - Other
... untested and sold as-is, which adds to their charm and mystery. The tubes are from a time when vacuum tubes were the primary electronic component used in electronic devices, and they represent a piece ...
$42.50
5Z4 - 100% TESTED GOOD VACUUM TUBE- TESTS STRONG

5Z4 - 100% TESTED GOOD VACUUM TUBE- TESTS STRONG

Wednesday, March 27, 6:32 AM - Other
QUALITY TESTED GOOD ELECTRON VACUUM TUBES: This Vacuum Tube(s) "PASSED" QC test(s) per specification on the KNIGHT 600A’s test meter scale. Tubes are ergonomically packaged to protect them for mailing ...