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56 Ultron UK used/good 1952 (4.5ma)
*** (BEST PRICE) *** 56 National Union and Sylvania rebranded Western Electronics NOS 1940's (10 in stock)
(!!!!) 56 Arcturus Blue Balloon engraved base tests like new 1930's (5.0ma)
*** $2.99 each SALE *** 5-8 pin tubes SOLD AS-IS UNTESTED (Minimum 5 tubes purchased) (select tube # at checkout)
(!!) (Pair #4) 56 Sylvania black plate NOS 1940's branded Western Electronics 1940's one tube has slightly tilted glass and plate (5.4ma and 5.4ma)
(!!!) (Best Pair #2) 56 Sylvania black plate NOS 1940's branded Western Electronics 1946 slightly tilted glass (5.9ma and 6.0ma)
(!!!) (Best Pair #4) 56 Sylvania black plate NOS 1940's branded Western Electronics 1940's slightly tilted glass (5.0ma and 5.2ma)
(!!!) (Best Pair #1) 56 Sylvania black plate NOS 1940's branded Western Electronics 1940's slightly tilted glass (6.1ma and 6.1ma) 1-2% matched
(!!!) (Best Pair #3) 56 Sylvania black plate NOS 1940's branded Western Electronics 1946 slightly tilted glass (5.5ma and 5.6ma) (same Gm)
