1N5546C semiconductor manufactured by Sylvania, listed as 1N5546C (circa 1979).

1N5410R semiconductor manufactured by Sylvania, listed as 1N5410R (circa 1979).

1N5357 semiconductor manufactured by Sylvania, listed as 1N5357 (circa 1979).

1N5269A semiconductor manufactured by Sylvania, listed as 1N5269A (circa 1979).

1N5230B semiconductor manufactured by Sylvania, listed as 1N5230B (circa 1979).

1N5854B semiconductor manufactured by Sylvania, listed as 1N5854B (circa 1979).

1N5610 semiconductor manufactured by Sylvania, listed as 1N5610 (circa 1979).

1N5546A semiconductor manufactured by Sylvania, listed as 1N5546A (circa 1979).

1N5410 semiconductor manufactured by Sylvania, listed as 1N5410 (circa 1979).

1N5356B semiconductor manufactured by Sylvania, listed as 1N5356B (circa 1979).

1N5269 semiconductor manufactured by Sylvania, listed as 1N5269 (circa 1979).

1N5230A semiconductor manufactured by Sylvania, listed as 1N5230A (circa 1979).

1N5853B semiconductor manufactured by Sylvania, listed as 1N5853B (circa 1979).

1N5607 semiconductor manufactured by Sylvania, listed as 1N5607 (circa 1979).

1N5546 semiconductor manufactured by Sylvania, listed as 1N5546 (circa 1979).

1N5409R semiconductor manufactured by Sylvania, listed as 1N5409R (circa 1979).

1N5356A semiconductor manufactured by Sylvania, listed as 1N5356A (circa 1979).

1N5268B semiconductor manufactured by Sylvania, listed as 1N5268B (circa 1979).

1N5230 semiconductor manufactured by Sylvania, listed as 1N5230 (circa 1979).

1N5853 semiconductor manufactured by Sylvania, listed as 1N5853 (circa 1979).