2N680 semiconductor manufactured by Sylvania, listed as 2N680 (circa 1979).

2N582 semiconductor manufactured by Sylvania, listed as 2N582 (circa 1979).

2N1266 semiconductor manufactured by Sylvania, listed as 2N1266 (circa 1979).

2N1152 semiconductor manufactured by Sylvania, listed as 2N1152 (circa 1979).

2N1032B semiconductor manufactured by Sylvania, listed as 2N1032B (circa 1979).

2N922 semiconductor manufactured by Sylvania, listed as 2N922 (circa 1979).

2N771 semiconductor manufactured by Sylvania, listed as 2N771 (circa 1979).

2N679 semiconductor manufactured by Sylvania, listed as 2N679 (circa 1979).

2N581 semiconductor manufactured by Sylvania, listed as 2N581 (circa 1979).

2N1265A semiconductor manufactured by Sylvania, listed as 2N1265A (circa 1979).

2N1151 semiconductor manufactured by Sylvania, listed as 2N1151 (circa 1979).

2N1032A semiconductor manufactured by Sylvania, listed as 2N1032A (circa 1979).

2N921 semiconductor manufactured by Sylvania, listed as 2N921 (circa 1979).

2N770 semiconductor manufactured by Sylvania, listed as 2N770 (circa 1979).

2N678C semiconductor manufactured by Sylvania, listed as 2N678C (circa 1979).

2N580 semiconductor manufactured by Sylvania, listed as 2N580 (circa 1979).

2N1265 semiconductor manufactured by Sylvania, listed as 2N1265 (circa 1979).

2N1150 semiconductor manufactured by Sylvania, listed as 2N1150 (circa 1979).

2N1032 semiconductor manufactured by Sylvania, listed as 2N1032 (circa 1979).

2N920 semiconductor manufactured by Sylvania, listed as 2N920 (circa 1979).