2N929 semiconductor manufactured by Sylvania, listed as 2N929 (circa 1979).

2N778 semiconductor manufactured by Sylvania, listed as 2N778 (circa 1979).

2N684 semiconductor manufactured by Sylvania, listed as 2N684 (circa 1979).

2N588 semiconductor manufactured by Sylvania, listed as 2N588 (circa 1979).

2N1159 semiconductor manufactured by Sylvania, listed as 2N1159 (circa 1979).

2N1037 semiconductor manufactured by Sylvania, listed as 2N1037 (circa 1979).

2N928 semiconductor manufactured by Sylvania, listed as 2N928 (circa 1979).

2N777 semiconductor manufactured by Sylvania, listed as 2N777 (circa 1979).

2N683A semiconductor manufactured by Sylvania, listed as 2N683A (circa 1979).

2N587 semiconductor manufactured by Sylvania, listed as 2N587 (circa 1979).

2N1158A semiconductor manufactured by Sylvania, listed as 2N1158A (circa 1979).

2N1036 semiconductor manufactured by Sylvania, listed as 2N1036 (circa 1979).

2N927 semiconductor manufactured by Sylvania, listed as 2N927 (circa 1979).

2N776 semiconductor manufactured by Sylvania, listed as 2N776 (circa 1979).

2N683 semiconductor manufactured by Sylvania, listed as 2N683 (circa 1979).

2N586 semiconductor manufactured by Sylvania, listed as 2N586 (circa 1979).

2N1158 semiconductor manufactured by Sylvania, listed as 2N1158 (circa 1979).

2N1035 semiconductor manufactured by Sylvania, listed as 2N1035 (circa 1979).

2N926 semiconductor manufactured by Sylvania, listed as 2N926 (circa 1979).

2N775 semiconductor manufactured by Sylvania, listed as 2N775 (circa 1979).