2N5652 semiconductor manufactured by Sylvania, listed as 2N5652 (circa 1979).

2N5651 semiconductor manufactured by Sylvania, listed as 2N5651 (circa 1979).

2N5650 semiconductor manufactured by Sylvania, listed as 2N5650 (circa 1979).

2N5646 semiconductor manufactured by Sylvania, listed as 2N5646 (circa 1979).

2N5645 semiconductor manufactured by Sylvania, listed as 2N5645 (circa 1979).

2N5644 semiconductor manufactured by Sylvania, listed as 2N5644 (circa 1979).

2N5643 semiconductor manufactured by Sylvania, listed as 2N5643 (circa 1979).

2N5642 semiconductor manufactured by Sylvania, listed as 2N5642 (circa 1979).

2N5641 semiconductor manufactured by Sylvania, listed as 2N5641 (circa 1979).

2N5639 semiconductor manufactured by Sylvania, listed as 2N5639 (circa 1979).

2N5634 semiconductor manufactured by Sylvania, listed as 2N5634 (circa 1979).

2N5633 semiconductor manufactured by Sylvania, listed as 2N5633 (circa 1979).

2N5632 semiconductor manufactured by Sylvania, listed as 2N5632 (circa 1979).

2N5631 semiconductor manufactured by Sylvania, listed as 2N5631 (circa 1979).

2N5630 semiconductor manufactured by Sylvania, listed as 2N5630 (circa 1979).

2N5629 semiconductor manufactured by Sylvania, listed as 2N5629 (circa 1979).

2N5628 semiconductor manufactured by Sylvania, listed as 2N5628 (circa 1979).

2N5626 semiconductor manufactured by Sylvania, listed as 2N5626 (circa 1979).

2N5625 semiconductor manufactured by Sylvania, listed as 2N5625 (circa 1979).

2N5624 semiconductor manufactured by Sylvania, listed as 2N5624 (circa 1979).