2N1351 semiconductor manufactured by Sylvania, listed as 2N1351 (circa 1979).

2N1214 semiconductor manufactured by Sylvania, listed as 2N1214 (circa 1979).

2N1118 semiconductor manufactured by Sylvania, listed as 2N1118 (circa 1979).

2N995 semiconductor manufactured by Sylvania, listed as 2N995 (circa 1979).

2N843 semiconductor manufactured by Sylvania, listed as 2N843 (circa 1979).

2N722 semiconductor manufactured by Sylvania, listed as 2N722 (circa 1979).

2N638B semiconductor manufactured by Sylvania, listed as 2N638B (circa 1979).

2N1350 semiconductor manufactured by Sylvania, listed as 2N1350 (circa 1979).

2N1213 semiconductor manufactured by Sylvania, listed as 2N1213 (circa 1979).

2N1117 semiconductor manufactured by Sylvania, listed as 2N1117 (circa 1979).

2N994 semiconductor manufactured by Sylvania, listed as 2N994 (circa 1979).

2N842 semiconductor manufactured by Sylvania, listed as 2N842 (circa 1979).

2N721A semiconductor manufactured by Sylvania, listed as 2N721A (circa 1979).

2N638A semiconductor manufactured by Sylvania, listed as 2N638A (circa 1979).

2N1349 semiconductor manufactured by Sylvania, listed as 2N1349 (circa 1979).

2N1207 semiconductor manufactured by Sylvania, listed as 2N1207 (circa 1979).

2N1116 semiconductor manufactured by Sylvania, listed as 2N1116 (circa 1979).

2N993 semiconductor manufactured by Sylvania, listed as 2N993 (circa 1979).

2N841 semiconductor manufactured by Sylvania, listed as 2N841 (circa 1979).

2N721 semiconductor manufactured by Sylvania, listed as 2N721 (circa 1979).