1N4853A semiconductor manufactured by Sylvania, listed as 1N4853A (circa 1979).

1N4758 semiconductor manufactured by Sylvania, listed as 1N4758 (circa 1979).

1N4671 semiconductor manufactured by Sylvania, listed as 1N4671 (circa 1979).

1N4485 semiconductor manufactured by Sylvania, listed as 1N4485 (circa 1979).

1N4408 semiconductor manufactured by Sylvania, listed as 1N4408 (circa 1979).

1N5059 semiconductor manufactured by Sylvania, listed as 1N5059 (circa 1979).

1N4979 semiconductor manufactured by Sylvania, listed as 1N4979 (circa 1979).

1N4853 semiconductor manufactured by Sylvania, listed as 1N4853 (circa 1979).

1N4757A semiconductor manufactured by Sylvania, listed as 1N4757A (circa 1979).

1N4670 semiconductor manufactured by Sylvania, listed as 1N4670 (circa 1979).

1N4484 semiconductor manufactured by Sylvania, listed as 1N4484 (circa 1979).

1N4407B semiconductor manufactured by Sylvania, listed as 1N4407B (circa 1979).

1N5058 semiconductor manufactured by Sylvania, listed as 1N5058 (circa 1979).

1N4978 semiconductor manufactured by Sylvania, listed as 1N4978 (circa 1979).

1N4852B semiconductor manufactured by Sylvania, listed as 1N4852B (circa 1979).

1N4757 semiconductor manufactured by Sylvania, listed as 1N4757 (circa 1979).

1N4669 semiconductor manufactured by Sylvania, listed as 1N4669 (circa 1979).

1N4483 semiconductor manufactured by Sylvania, listed as 1N4483 (circa 1979).

1N4407A semiconductor manufactured by Sylvania, listed as 1N4407A (circa 1979).

1N5057 semiconductor manufactured by Sylvania, listed as 1N5057 (circa 1979).