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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)
(!!) (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)
171A RCA Radiotron Balloon used/good 1932 (20ma)
71A Cunningham Balloon used/tests like new 1930's (30ma)
71A Sylvania used/good 1930's (21ma)
