(!!) (Best Value Pair) 71A RCA Cunningham Radiotron used/good 1930's - 1940's same build (21.3ma and 22.2ma)
(!!) (Good Value Pair) 71A Sylvania branded Hytron NOS and Sylvania branded Ken Rad like new 1946-1947 (21.5ma and 21.8ma)
(!!) (Single) 71A Tungsol NOS 1940's in white box (23.6ma)
(!!) 71A Tungsol NOS 1946-1947 (17.5ma)
71A Cunningham Balloon used/tests like new 1930's (30ma)
71A Raytheon 4-Pillar box-plate used/strong 1930's (24.8ma)
71A Raytheon NOS 1940's (27.5ma)
71A RCA Radiotron Balloon used/good 1930's (21ma)
71A Super Silvertone by Sylvania engraved base NOS 1937 (19ma)
71A Super Silvertone used/very good 1930's (25ma)
UX-171A RCA Radiotron Balloon used/good 1930's (18ma)