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Gu74b 4cx800 Vacuum Tube NOS
GU74B Russian Vacuum tube 4cx800
3cx3000A7 GreenStone Vacuum Tube
3cx15,000A7 Econco Rebuilt 15000 3cx15000 3cx15000a7
gu74B
6KD6 Vacuum tube Used 8 tubes availabla @ $10 each
3cx10,000a7 used 10,000 10000
GS35b vacuum tube
6LR6 Vacuum Tube
4cx5000 econco rebuild 2
4cx10,000D Eimac N.O.S
3cx3000a7, 3cx3000, 3000 Tested full output...
3cx10,000a7 used eimac
Eimac 4cx10,000D Vacuum Tube
4cx250B Penta Labs NOS
Eimac 4cx250R
4cx250b Eimac vacuum tube
Gu74b
Wizard Amp with 2 GI7B tubes
4cx20,000A vacuum tube
3cx3000A7 Russian Vacuum tube 3000 , 3000a7 , 3cx3000
Gu70b vacuum tubes
4cx250R tubes Used, replaces 4cx250B tubes
Gu70B same as the 4cx250B tube
5cx1500A with socket and chimney
Econco 3cx15,000H3 Vacuum Tube Rebuilt
YC 179A YC-179A Machlett 1805071
Eimac 3cx15000A7 Brand New in the box
YC179 YC 179 MRI vacuum tube 1506048
Eimac 3cx3000F7 Brand New still in Original Packing