56 Super Airline used/good 1940's (4.1ma)
56 Sylvania branded RCA NOS 1946 (6.0ma)
56 Sylvania NOS 1940's (5.8ma)
56 Tungsol rebranded Raytheon tests like new 1940's (6.1ma)
56 Ultron UK used/good 1952 (4.5ma)
(!!!) (Best Pair 1946) 56 Sylvania black plate NOS 1946 (5.4ma and 5.7ma) (same Gm)
(!!!) 56 National Union and Sylvania rebranded Western Electronics NOS 1940's (10 in stock) (BEST PRICE)