1N5406 semiconductor manufactured by Sylvania, listed as 1N5406 (circa 1979).

1N5354B semiconductor manufactured by Sylvania, listed as 1N5354B (circa 1979).

1N5267A semiconductor manufactured by Sylvania, listed as 1N5267A (circa 1979).

1N5228A semiconductor manufactured by Sylvania, listed as 1N5228A (circa 1979).

1N5851B semiconductor manufactured by Sylvania, listed as 1N5851B (circa 1979).

1N5594 semiconductor manufactured by Sylvania, listed as 1N5594 (circa 1979).

1N5544A semiconductor manufactured by Sylvania, listed as 1N5544A (circa 1979).

1N5405 semiconductor manufactured by Sylvania, listed as 1N5405 (circa 1979).

1N5354A semiconductor manufactured by Sylvania, listed as 1N5354A (circa 1979).

1N5267 semiconductor manufactured by Sylvania, listed as 1N5267 (circa 1979).

1N5228 semiconductor manufactured by Sylvania, listed as 1N5228 (circa 1979).

1N5850B semiconductor manufactured by Sylvania, listed as 1N5850B (circa 1979).

1N5593B semiconductor manufactured by Sylvania, listed as 1N5593B (circa 1979).

1N5544 semiconductor manufactured by Sylvania, listed as 1N5544 (circa 1979).

1N5404 semiconductor manufactured by Sylvania, listed as 1N5404 (circa 1979).

1N5354 semiconductor manufactured by Sylvania, listed as 1N5354 (circa 1979).

1N5266B semiconductor manufactured by Sylvania, listed as 1N5266B (circa 1979).

1N5849B semiconductor manufactured by Sylvania, listed as 1N5849B (circa 1979).

1N5593A semiconductor manufactured by Sylvania, listed as 1N5593A (circa 1979).

1N5543B semiconductor manufactured by Sylvania, listed as 1N5543B (circa 1979).