(!!!) (Recommended Pair) 1626 RCA NOS 1940's (31.5/32ma)
(!!!) (Recommended Pair) USN-CRC-1626 RCA NOS 1944 (34.5ma and 35.2ma)
(!!) (Recommended Pair) 1626 RCA NOS 1953-1962 (37ma and 38ma)
(!) (Best Value Pair) US Navy-CNU-1626 National Union NOS 1940's (30ma and 32.5ma)
1626=VT-137 RCA NOS 1940's (33.8ma)
