(!!) (Recommended Pair) CX-371A Cunningham Balloon used/good 1930's (18ma and 20ma)
(!!) (Recommended Pair) UX-171A RCA Balloon used/good 1930's (19.2ma and 18.4ma)
(!!) (Recommended Pair) UX-171A RCA Balloon used/very good 1930's (23.8ma and 27ma)
(!!) 71A Tungsol NOS 1940's in white box (23.6ma)
71A Raytheon NOS 1940's (27.5ma)
71A RCA Cunningham Radiotron used/tests like new 1936 (24ma)
71A RCA Radiotron Balloon used/good 1930's (21ma)
71A Super Silvertone by Sylvania engraved base NOS 1937 (19ma)
71A Super Silvertone by Sylvania engraved base NOS 1937 (22.5ma)
