2N608 semiconductor manufactured by Sylvania, listed as 2N608 (circa 1979).

2N1292 semiconductor manufactured by Sylvania, listed as 2N1292 (circa 1979).

2N1177 semiconductor manufactured by Sylvania, listed as 2N1177 (circa 1979).

2N1081 semiconductor manufactured by Sylvania, listed as 2N1081 (circa 1979).

2N961 semiconductor manufactured by Sylvania, listed as 2N961 (circa 1979).

2N804 semiconductor manufactured by Sylvania, listed as 2N804 (circa 1979).

2N700 semiconductor manufactured by Sylvania, listed as 2N700 (circa 1979).

2N607 semiconductor manufactured by Sylvania, listed as 2N607 (circa 1979).

2N1291 semiconductor manufactured by Sylvania, listed as 2N1291 (circa 1979).

2N1176B semiconductor manufactured by Sylvania, listed as 2N1176B (circa 1979).

2N1073B semiconductor manufactured by Sylvania, listed as 2N1073B (circa 1979).

2N803 semiconductor manufactured by Sylvania, listed as 2N803 (circa 1979).

2N699S semiconductor manufactured by Sylvania, listed as 2N699S (circa 1979).

2N606 semiconductor manufactured by Sylvania, listed as 2N606 (circa 1979).

2N1289 semiconductor manufactured by Sylvania, listed as 2N1289 (circa 1979).

2N1176A semiconductor manufactured by Sylvania, listed as 2N1176A (circa 1979).

2N1073A semiconductor manufactured by Sylvania, listed as 2N1073A (circa 1979).

2N960 semiconductor manufactured by Sylvania, listed as 2N960 (circa 1979).

2N802 semiconductor manufactured by Sylvania, listed as 2N802 (circa 1979).

2N699L semiconductor manufactured by Sylvania, listed as 2N699L (circa 1979).