2N268 semiconductor manufactured by Sylvania, listed as 2N268 (circa 1979).

2N103 semiconductor manufactured by Sylvania, listed as 2N103 (circa 1979).

2N530 semiconductor manufactured by Sylvania, listed as 2N530 (circa 1979).

2N446A semiconductor manufactured by Sylvania, listed as 2N446A (circa 1979).

2N361 semiconductor manufactured by Sylvania, listed as 2N361 (circa 1979).

2N267 semiconductor manufactured by Sylvania, listed as 2N267 (circa 1979).

2N102 semiconductor manufactured by Sylvania, listed as 2N102 (circa 1979).

2N529 semiconductor manufactured by Sylvania, listed as 2N529 (circa 1979).

2N446 semiconductor manufactured by Sylvania, listed as 2N446 (circa 1979).

2N360 semiconductor manufactured by Sylvania, listed as 2N360 (circa 1979).

2N266 semiconductor manufactured by Sylvania, listed as 2N266 (circa 1979).

2N176W semiconductor manufactured by Sylvania, listed as 2N176W (circa 1979).

2N100 semiconductor manufactured by Sylvania, listed as 2N100 (circa 1979).

2N527A semiconductor manufactured by Sylvania, listed as 2N527A (circa 1979).

2N445A semiconductor manufactured by Sylvania, listed as 2N445A (circa 1979).

2N359 semiconductor manufactured by Sylvania, listed as 2N359 (circa 1979).

2N264 semiconductor manufactured by Sylvania, listed as 2N264 (circa 1979).

2N527 semiconductor manufactured by Sylvania, listed as 2N527 (circa 1979).

2N445 semiconductor manufactured by Sylvania, listed as 2N445 (circa 1979).

2N358A semiconductor manufactured by Sylvania, listed as 2N358A (circa 1979).