1N5076 semiconductor manufactured by Sylvania, listed as 1N5076 (circa 1979).

1N5003 semiconductor manufactured by Sylvania, listed as 1N5003 (circa 1979).

1N4859 semiconductor manufactured by Sylvania, listed as 1N4859 (circa 1979).

1N4766A semiconductor manufactured by Sylvania, listed as 1N4766A (circa 1979).

1N4691 semiconductor manufactured by Sylvania, listed as 1N4691 (circa 1979).

1N4506 semiconductor manufactured by Sylvania, listed as 1N4506 (circa 1979).

1N4414 semiconductor manufactured by Sylvania, listed as 1N4414 (circa 1979).

1N5075 semiconductor manufactured by Sylvania, listed as 1N5075 (circa 1979).

1N5002 semiconductor manufactured by Sylvania, listed as 1N5002 (circa 1979).

1N4858B semiconductor manufactured by Sylvania, listed as 1N4858B (circa 1979).

1N4766 semiconductor manufactured by Sylvania, listed as 1N4766 (circa 1979).

1N4690 semiconductor manufactured by Sylvania, listed as 1N4690 (circa 1979).

1N4504 semiconductor manufactured by Sylvania, listed as 1N4504 (circa 1979).

1N4413B semiconductor manufactured by Sylvania, listed as 1N4413B (circa 1979).

1N5074 semiconductor manufactured by Sylvania, listed as 1N5074 (circa 1979).

1N5001 semiconductor manufactured by Sylvania, listed as 1N5001 (circa 1979).

1N4858A semiconductor manufactured by Sylvania, listed as 1N4858A (circa 1979).

1N4765A semiconductor manufactured by Sylvania, listed as 1N4765A (circa 1979).

1N4689 semiconductor manufactured by Sylvania, listed as 1N4689 (circa 1979).

1N4503 semiconductor manufactured by Sylvania, listed as 1N4503 (circa 1979).