(DISPLAY TUBE - DOES NOT WORK) 838 RCA Radiotron around 1940 (DISPLAY TUBE WITH OPEN FILAMENT)
(Display tube) 201A Volutron brass base - does not work - in good condition - 1920's
(DISPLAY TUBE) 274A Western Electric 1966 open filament - doesn't work (display tube only)
(DISPLAY TUBE) 4242A=242A=CV25 STC England broken filament - display tube only
(DISPLAY TUBE) 480 Deforest Audio Balloon shape glass 1930's (for display purposes only - does not work)
(DISPLAY TUBE) 811A SYLVANIA - tubes lights but is non-functional - a few glass chips inside tube
(DISPLAY TUBE) FP54 GE weak display tube
(DISPLAY TUBE) TS-281 Tungsol Balloon NOS engraved base 1930's (for display purposes only)
(display tube) UV-99 Radiotron brass base 1920's - lights up but does not have emission
(display tube) UV-99 Radiotron brass base 1920's tarnished base - lights up
(display tube) UV-99 Unknown maker - does not work
(DISPLAY TUBES) 80 Balloon shape glass 1930's (for display purposes only - do not work)
100TH Eimac used/weak display tube (for display purposes only)
102F WE Tennis Ball display tube - does not work
833A Amperex with long tubulation - sold as display tubes - but could be turned into working 833A with right equipment (1 in stock)
Deforest Audion Isolantite base display tube (single)
Deforest Audion metal base display tube 1920's (single)
G-45 Majestic Balloon (display tube) (gassy)
UX-245 RCA Balloon (display tube) (gassy)