(!!!!) (BEST PAIR) JAN-CRC-1619 RCA NOS 1952 and 1956 (51.4ma and 51.6ma)
(!!!) (BEST PAIR 1943) JAN-1619=VT-164 RCA NOS 1943 (55ma and 57ma)
(!!!) (BEST PAIR) JAN-CRC-1619 RCA NOS 1952-1953 (53ma and 55ma)
(!!!) (BEST PAIR) JAN-CRC-1619 RCA NOS 1956 (53ma and 55.5ma)
(!!!) (Recommended Pair) 1619 RCA NOS 1958 made for Westinghouse Canada (54.5ma and 56ma)
(!!!) (Recommended PAIR) JAN-CRC-1619 RCA NOS 1952 and 1956 (52ma and 52.5ma) (matched on Amplitrex)
(!!) (PAIR) 1619 RCA NOS 1975-1976 (49.5ma and 52ma)
(!) (Recommended Pair) 1619 RCA NOS 1956 made for Marconi Canada (53ma and 58ma)
1619 GE NOS 1960 (56ma)
1619 Ken Rad NOS 1940's also stamped 1953 (56ma)
1619 RCA branded National NOS (52ma)
JAN-CRC-1619 RCA NOS 1952 (52ma Gm=4600)
