Here is a great buy at 2 tubes. all tested on our hickock 533 tester. both triodes mutual contance was reading steady and true at 5100 micromhos . 5000 is on our scroll for reference for a brand new t

 

These tubes are used and tested good on a Heathkit IT 21 tube tester. The test reads as a percentage with a good tube range of between 58 - 100 %. These tubes had the following % readings Philco type

 

                                This auction is for a Vintage RCA 5Y3 GT Black Plate Amp Rectifier Tube.   It has black plates, a bottom rectangle getter and is in good clean conditio

 

NO RESERVE!! Vintage Yamaha APD-1 RF Demodulator! When was the last time you saw one of these? It works great and is ready to go. This has been sitting safely in my closet for many years - before that

 

Unknown brand unmarked pair of tube output transformers; appear good continuity. Size is 3 3/4 x 3 3/4 x 4 inches. Non ultralinear primaries [ three wires ] and 6 secondaries suggesting some additiona

 

Description Buy-It-Now items please click here. Double-Side Prototype Board, Lot of 20 PCS( 4 types, each 5 PCS ).Grid : 0.1" (2.54mm). Thickness : 1.6mm.Hole diameter : 0.9mm.Material : FR-4 (glass f

 

This listing is for one used General Electric heavy duty electronic vacuum tube in the original box. The M 2057 tubes were GE’s heavier duty and higher output replacement tube for the 8950. The 2057

 

Up for grabs is a Vintage TEAC R-999X Cassette Player/Recorder. This unit powers on OK but does not no engage when trying to play or FF/REW a Tape. Not sure if it needs belts or typical wear & tea

 

H.H. Scott Bookshelf speaker Up for bids is ONE(1) Scott speaker. It has it's share of scratches, but no big chunks out of the cabinet (a few chips here and there, but nothing huge, see photos). No te

 

Up for auction is a Vacuum Tube / Valve NEW, never used. BRAND AND ORIGIN UNKNOWN. It is decades old. It used to belong to my father who was an electronics technician. He passed away some 17 years ago