(!!!!) UX-280 RCA Radiotron Balloon used/60% 1930 era some white oxide flakes inside tube (38/40 and 38/40)
(!!!) (BEST PRICE) 80 US Brands used/good (5 in stock) ($9.99 each)
(!!!) (Best Sounding Pair) 80 Sylvania Philco NOS 1950 (54-57/40 and 56-58/40)
(!!!) 80 RCA Victor NOS 1948 (56/40 and 58/40)
(!!!) CX-380 Cunningham Balloon used/65% 1930 era some white oxide flakes inside tube (39/40 and 44/40)
(!!) (DISPLAY TUBE) 180 Arcturus Blue 1930 era (does not work - display tube only)
(!!) (Recommended Pair) 80 GE GT-shape NOS 1960 (56/40 and 62/40 x 2 tubes)
(!!) 80 Fapesa Miniwatt Argentina NOS 1950's faded printing (52/40 and 56/40)
(!!) 80 GE GT-shape NOS 1957 slightly tilted glass (56/40 and 60/40)
(!) 80 Delco by Sylvania ST-shape used/tests like new 1947 rattle inside base (57/40 and 60/40)
(!) 80 GE Uruguay GT-shape NOS 1950's tilted glass (58/40 and 60/40)
(!) 80 Ken Rad ST-shape tests like new mid-1940's (52/40 and 54/40)
(!) 80 National Union used/strong 1940's (53/40 and 56/40)
(!) 80 RCA GT-shape like new 1957 (60/40 and 64/40)
(!) 80 Sylvania GT-shape NOS tilted glass (52/40 and 56/40)
(!) 80 Tungsol ST-shape tests like new 1940's (54/40 and 56/40)
(!) 80 Tungsol ST-shape tests like new 1940's (57/40 and 60/40)
(!) 80 Tungsol ST-shape used/good 1946 (52/40 and 54/40)
(DISPLAY TUBE) 480 Deforest Audio Balloon shape glass 1930's (for display purposes only - does not work)
(DISPLAY TUBES) 80 Balloon shape glass 1930's (for display purposes only - do not work)
