2N482 semiconductor manufactured by Sylvania, listed as 2N482 (circa 1979).

2N397 semiconductor manufactured by Sylvania, listed as 2N397 (circa 1979).

2N306 semiconductor manufactured by Sylvania, listed as 2N306 (circa 1979).

2N214 semiconductor manufactured by Sylvania, listed as 2N214 (circa 1979).

2N135 semiconductor manufactured by Sylvania, listed as 2N135 (circa 1979).

2N568 semiconductor manufactured by Sylvania, listed as 2N568 (circa 1979).

2N481 semiconductor manufactured by Sylvania, listed as 2N481 (circa 1979).

2N396A semiconductor manufactured by Sylvania, listed as 2N396A (circa 1979).

2N303 semiconductor manufactured by Sylvania, listed as 2N303 (circa 1979).

2N213A semiconductor manufactured by Sylvania, listed as 2N213A (circa 1979).

2N133A semiconductor manufactured by Sylvania, listed as 2N133A (circa 1979).

2N567 semiconductor manufactured by Sylvania, listed as 2N567 (circa 1979).

2N480B semiconductor manufactured by Sylvania, listed as 2N480B (circa 1979).

2N396 semiconductor manufactured by Sylvania, listed as 2N396 (circa 1979).

2N302 semiconductor manufactured by Sylvania, listed as 2N302 (circa 1979).

2N213 semiconductor manufactured by Sylvania, listed as 2N213 (circa 1979).

2N133 semiconductor manufactured by Sylvania, listed as 2N133 (circa 1979).

2N566 semiconductor manufactured by Sylvania, listed as 2N566 (circa 1979).

2N480A semiconductor manufactured by Sylvania, listed as 2N480A (circa 1979).

2N395 semiconductor manufactured by Sylvania, listed as 2N395 (circa 1979).