2N719A semiconductor manufactured by Sylvania, listed as 2N719A (circa 1979).

2N637 semiconductor manufactured by Sylvania, listed as 2N637 (circa 1979).

2N1345 semiconductor manufactured by Sylvania, listed as 2N1345 (circa 1979).

2N1203 semiconductor manufactured by Sylvania, listed as 2N1203 (circa 1979).

2N1112 semiconductor manufactured by Sylvania, listed as 2N1112 (circa 1979).

2N989 semiconductor manufactured by Sylvania, listed as 2N989 (circa 1979).

2N837 semiconductor manufactured by Sylvania, listed as 2N837 (circa 1979).

2N719 semiconductor manufactured by Sylvania, listed as 2N719 (circa 1979).

2N636A semiconductor manufactured by Sylvania, listed as 2N636A (circa 1979).

2N1344 semiconductor manufactured by Sylvania, listed as 2N1344 (circa 1979).

2N1202 semiconductor manufactured by Sylvania, listed as 2N1202 (circa 1979).

2N988 semiconductor manufactured by Sylvania, listed as 2N988 (circa 1979).

2N835 semiconductor manufactured by Sylvania, listed as 2N835 (circa 1979).

2N718A semiconductor manufactured by Sylvania, listed as 2N718A (circa 1979).

2N636 semiconductor manufactured by Sylvania, listed as 2N636 (circa 1979).

2N1343 semiconductor manufactured by Sylvania, listed as 2N1343 (circa 1979).

2N1201 semiconductor manufactured by Sylvania, listed as 2N1201 (circa 1979).

2N1111B semiconductor manufactured by Sylvania, listed as 2N1111B (circa 1979).

2N987 semiconductor manufactured by Sylvania, listed as 2N987 (circa 1979).

2N834A semiconductor manufactured by Sylvania, listed as 2N834A (circa 1979).