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(!!!!) (Best Value Pair #1) 71A RCA/Cunningham Radiotron used/tests like new 1930's (24.5ma and 26ma)
(!!!!) (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
(!!!!) (Recommended Pair) 71A Westinghouse Canada NOS 1949 in white boxes (23ma and 27.3ma)
(!!!) (Best Pair) 71A Sylvania NOS 1947 branded Hytron 1951 (25.6ma and 27.4ma)
(!!!) (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)
(!!) (Recommended Pair) UX-171A and CX-371A RCA/Cunningham Balloon used/test like new 1930 era same build (24.6ma and 27.2ma) (same Gm)
(!!) 71A Philco used/good 1930's (18.5ma)
(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)