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(!!!!) (Best Value Pair) 71A RCA and Ken Rad used/good 1930's (22ma and 22.6ma)
(!!!!) (Highest Testing Pair) 71A Philco and Aristocrat test like new 1930's similar build (32.2ma and 32.5ma) 1-3% matched
(!!!) (Best Value Pair) 71A Sylvania branded Raytheon NOS 1947 (25.2ma and 29.2ma)
(!!) (Best Value Pair) 71A Philco and Aristocrat used/good 1930's similar build (25.6ma and 27ma) (same Gm)
(!!) (Pair) 71A RCA Victor and Super Silvertone used/good 1930's - 1940's (21.5ma and 25ma) (Same Gm)
(!!) 71A Philco used/good 1930's (18.5ma)
(!!) 71A RCA/Cunningham NOS 1940 era (20ma)
(READ REVIEW) 71A RCA branded Arcturus NOS 1940 era (22.6ma and 23.8ma) (same Gm)
171A RCA Radiotron Balloon used/good 1932 (20ma)
71A Cunningham Balloon used/tests like new 1930's (30ma)
