1N5048A semiconductor manufactured by Sylvania, listed as 1N5048A (circa 1979).

1N4965 semiconductor manufactured by Sylvania, listed as 1N4965 (circa 1979).

1N4848 semiconductor manufactured by Sylvania, listed as 1N4848 (circa 1979).

1N4750A semiconductor manufactured by Sylvania, listed as 1N4750A (circa 1979).

1N4656 semiconductor manufactured by Sylvania, listed as 1N4656 (circa 1979).

1N4470 semiconductor manufactured by Sylvania, listed as 1N4470 (circa 1979).

1N4403 semiconductor manufactured by Sylvania, listed as 1N4403 (circa 1979).

1N5048 semiconductor manufactured by Sylvania, listed as 1N5048 (circa 1979).

1N4964 semiconductor manufactured by Sylvania, listed as 1N4964 (circa 1979).

1N4847B semiconductor manufactured by Sylvania, listed as 1N4847B (circa 1979).

1N4750 semiconductor manufactured by Sylvania, listed as 1N4750 (circa 1979).

1N4655 semiconductor manufactured by Sylvania, listed as 1N4655 (circa 1979).

1N4469 semiconductor manufactured by Sylvania, listed as 1N4469 (circa 1979).

1N4402B semiconductor manufactured by Sylvania, listed as 1N4402B (circa 1979).

1N5047A semiconductor manufactured by Sylvania, listed as 1N5047A (circa 1979).

1N4963 semiconductor manufactured by Sylvania, listed as 1N4963 (circa 1979).

1N4847A semiconductor manufactured by Sylvania, listed as 1N4847A (circa 1979).

1N4749A semiconductor manufactured by Sylvania, listed as 1N4749A (circa 1979).

1N4654 semiconductor manufactured by Sylvania, listed as 1N4654 (circa 1979).

1N4468 semiconductor manufactured by Sylvania, listed as 1N4468 (circa 1979).