1N5885B semiconductor manufactured by Sylvania, listed as 1N5885B (circa 1979).

1N5731 semiconductor manufactured by Sylvania, listed as 1N5731 (circa 1979).

1N5568A semiconductor manufactured by Sylvania, listed as 1N5568A (circa 1979).

1N5518 semiconductor manufactured by Sylvania, listed as 1N5518 (circa 1979).

1N5367B semiconductor manufactured by Sylvania, listed as 1N5367B (circa 1979).

1N5280A semiconductor manufactured by Sylvania, listed as 1N5280A (circa 1979).

1N5241B semiconductor manufactured by Sylvania, listed as 1N5241B (circa 1979).

1N5884B semiconductor manufactured by Sylvania, listed as 1N5884B (circa 1979).

1N5730B semiconductor manufactured by Sylvania, listed as 1N5730B (circa 1979).

1N5568 semiconductor manufactured by Sylvania, listed as 1N5568 (circa 1979).

1N5470A semiconductor manufactured by Sylvania, listed as 1N5470A (circa 1979).

1N5367A semiconductor manufactured by Sylvania, listed as 1N5367A (circa 1979).

1N5280 semiconductor manufactured by Sylvania, listed as 1N5280 (circa 1979).

1N5241A semiconductor manufactured by Sylvania, listed as 1N5241A (circa 1979).

1N5730 semiconductor manufactured by Sylvania, listed as 1N5730 (circa 1979).

1N5567B semiconductor manufactured by Sylvania, listed as 1N5567B (circa 1979).

1N5470 semiconductor manufactured by Sylvania, listed as 1N5470 (circa 1979).

1N5367 semiconductor manufactured by Sylvania, listed as 1N5367 (circa 1979).

1N5279B semiconductor manufactured by Sylvania, listed as 1N5279B (circa 1979).

1N5241 semiconductor manufactured by Sylvania, listed as 1N5241 (circa 1979).