2N783 semiconductor manufactured by Sylvania, listed as 2N783 (circa 1979).

2N688 semiconductor manufactured by Sylvania, listed as 2N688 (circa 1979).

2N592 semiconductor manufactured by Sylvania, listed as 2N592 (circa 1979).

2N1164A semiconductor manufactured by Sylvania, listed as 2N1164A (circa 1979).

2N1046 semiconductor manufactured by Sylvania, listed as 2N1046 (circa 1979).

2N935 semiconductor manufactured by Sylvania, listed as 2N935 (circa 1979).

2N782 semiconductor manufactured by Sylvania, listed as 2N782 (circa 1979).

2N687A semiconductor manufactured by Sylvania, listed as 2N687A (circa 1979).

2N591A semiconductor manufactured by Sylvania, listed as 2N591A (circa 1979).

2N1164 semiconductor manufactured by Sylvania, listed as 2N1164 (circa 1979).

2N1045 semiconductor manufactured by Sylvania, listed as 2N1045 (circa 1979).

2N934 semiconductor manufactured by Sylvania, listed as 2N934 (circa 1979).

2N781 semiconductor manufactured by Sylvania, listed as 2N781 (circa 1979).

2N687 semiconductor manufactured by Sylvania, listed as 2N687 (circa 1979).

2N1163A semiconductor manufactured by Sylvania, listed as 2N1163A (circa 1979).

2N1044 semiconductor manufactured by Sylvania, listed as 2N1044 (circa 1979).

2N933 semiconductor manufactured by Sylvania, listed as 2N933 (circa 1979).

2N780 semiconductor manufactured by Sylvania, listed as 2N780 (circa 1979).

2N686A semiconductor manufactured by Sylvania, listed as 2N686A (circa 1979).

2N1163 semiconductor manufactured by Sylvania, listed as 2N1163 (circa 1979).