2N1361 semiconductor manufactured by Sylvania, listed as 2N1361 (circa 1979).

2N1227 semiconductor manufactured by Sylvania, listed as 2N1227 (circa 1979).

2N1131 semiconductor manufactured by Sylvania, listed as 2N1131 (circa 1979).

2N1008 semiconductor manufactured by Sylvania, listed as 2N1008 (circa 1979).

2N861 semiconductor manufactured by Sylvania, listed as 2N861 (circa 1979).

2N740A semiconductor manufactured by Sylvania, listed as 2N740A (circa 1979).

2N647 semiconductor manufactured by Sylvania, listed as 2N647 (circa 1979).

2N1360 semiconductor manufactured by Sylvania, listed as 2N1360 (circa 1979).

2N1226 semiconductor manufactured by Sylvania, listed as 2N1226 (circa 1979).

2N1130 semiconductor manufactured by Sylvania, listed as 2N1130 (circa 1979).

2N1007 semiconductor manufactured by Sylvania, listed as 2N1007 (circa 1979).

2N860 semiconductor manufactured by Sylvania, listed as 2N860 (circa 1979).

2N740 semiconductor manufactured by Sylvania, listed as 2N740 (circa 1979).

2N646 semiconductor manufactured by Sylvania, listed as 2N646 (circa 1979).

2N1359 semiconductor manufactured by Sylvania, listed as 2N1359 (circa 1979).

2N1225 semiconductor manufactured by Sylvania, listed as 2N1225 (circa 1979).

2N1128 semiconductor manufactured by Sylvania, listed as 2N1128 (circa 1979).

2N1006 semiconductor manufactured by Sylvania, listed as 2N1006 (circa 1979).

2N859 semiconductor manufactured by Sylvania, listed as 2N859 (circa 1979).

2N739A semiconductor manufactured by Sylvania, listed as 2N739A (circa 1979).