2N164A semiconductor manufactured by Sylvania, listed as 2N164A (circa 1979).

2N511 semiconductor manufactured by Sylvania, listed as 2N511 (circa 1979).

2N414C semiconductor manufactured by Sylvania, listed as 2N414C (circa 1979).

2N330 semiconductor manufactured by Sylvania, listed as 2N330 (circa 1979).

2N236B semiconductor manufactured by Sylvania, listed as 2N236B (circa 1979).

2N164 semiconductor manufactured by Sylvania, listed as 2N164 (circa 1979).

2N509 semiconductor manufactured by Sylvania, listed as 2N509 (circa 1979).

2N414B semiconductor manufactured by Sylvania, listed as 2N414B (circa 1979).

2N329B semiconductor manufactured by Sylvania, listed as 2N329B (circa 1979).

2N236A semiconductor manufactured by Sylvania, listed as 2N236A (circa 1979).

2N163A semiconductor manufactured by Sylvania, listed as 2N163A (circa 1979).

2N508A semiconductor manufactured by Sylvania, listed as 2N508A (circa 1979).

2N414A semiconductor manufactured by Sylvania, listed as 2N414A (circa 1979).

2N329A semiconductor manufactured by Sylvania, listed as 2N329A (circa 1979).

2N236 semiconductor manufactured by Sylvania, listed as 2N236 (circa 1979).

2N163 semiconductor manufactured by Sylvania, listed as 2N163 (circa 1979).

2N508 semiconductor manufactured by Sylvania, listed as 2N508 (circa 1979).

2N414 semiconductor manufactured by Sylvania, listed as 2N414 (circa 1979).

2N329 semiconductor manufactured by Sylvania, listed as 2N329 (circa 1979).

2N235B semiconductor manufactured by Sylvania, listed as 2N235B (circa 1979).