(!!!) 231=31 US Made Balloon NOS 1920's (14.2ma)
(!!!) 31 RCA Radiotron Balloon NOS 1920's (13.2ma)
(!!!) 76 Crosley by Ken Rad engraved base like new 1930's (5.7ma)
(!!!) 76 RCA branded Raytheon NOS 1954 (5.1ma)
(!!) (#1 37 Pair) 37 RCA like new 1940's (7.7ma and 7.8ma) 1% matched
(!!) (#1 37 Pair) 37 RCA NOS 1940's (7.3ma and 7.5ma)
(!!) (#1 37 Pair) 37 RCA NOS 1940's (8.5ma and 8.5ma) 1% matched
(!!) (#3 56 Sylvania Pair) 56 Sylvania black plate NOS 1940's branded Western Electronics 1940's one tube has slightly tilted glass (5.2ma and 5.5ma)
(!!) (#4 Type 30 PAIR) USN-CRC-30 RCA NOS 1940's "L" bracket (2.4ma and 2.8ma)
(!!) (1 Pair) 30 RCA Cunningham NOS 1946 (2.6ma and 3.1ma)
(!!) (1 Pair) 31 Cunningham NOS 1940's (11ma and 11.6ma)
(!!) (Best Matched Pair) 30 Sylvania NOS - same plates - different shape top mica 1945-1946 (3.2ma and 3.1ma) 1-2% matched
(!!) (BEST PAIR) 272A Western Electric NOS "meshplate" 1961 and 1969 (6.1ma and 6.4ma)
(!!) (Best Single) 26 Deforest Audion balloon tests like new 1920's (8.3ma, Gm=1300)
(!!) (Best Value Pair) 30 Sylvania NOS branded DELCO NOS 1947 (3.3ma and 2.8ma)
(!!) (BEST VALUE) 300M AVVT mesh-plate (Alesa Vaic Czech Republic) like new with data sheet and original box (not a sub for 300B) (300Vplate MAX)
(!!) (Good Value Pair) 272A Western Electric "meshplate" NOS and used/good 1952-1954 (5.2ma and 5.6ma)
(!!) (Good Value Pair) 272A Western Electric "meshplate" used/good 1951 and 1956 (5.8ma and 5.9ma)
(!!) (Recommended Pair) 30 Sylvania like new - same plates - different shape top mica (2.7ma and 2.9ma)
(!!) (single) 10=VT-25 SYLVANIA used/tests like new 1940's (26ma)