1N5008A semiconductor manufactured by Sylvania, listed as 1N5008A (circa 1979).

1N4861 semiconductor manufactured by Sylvania, listed as 1N4861 (circa 1979).

1N4770 semiconductor manufactured by Sylvania, listed as 1N4770 (circa 1979).

1N4697 semiconductor manufactured by Sylvania, listed as 1N4697 (circa 1979).

1N4517 semiconductor manufactured by Sylvania, listed as 1N4517 (circa 1979).

1N4416A semiconductor manufactured by Sylvania, listed as 1N4416A (circa 1979).

1N5081 semiconductor manufactured by Sylvania, listed as 1N5081 (circa 1979).

1N5008 semiconductor manufactured by Sylvania, listed as 1N5008 (circa 1979).

1N4860B semiconductor manufactured by Sylvania, listed as 1N4860B (circa 1979).

1N4769 semiconductor manufactured by Sylvania, listed as 1N4769 (circa 1979).

1N4696 semiconductor manufactured by Sylvania, listed as 1N4696 (circa 1979).

1N4514 semiconductor manufactured by Sylvania, listed as 1N4514 (circa 1979).

1N4416 semiconductor manufactured by Sylvania, listed as 1N4416 (circa 1979).

1N5080 semiconductor manufactured by Sylvania, listed as 1N5080 (circa 1979).

1N5007 semiconductor manufactured by Sylvania, listed as 1N5007 (circa 1979).

1N4860A semiconductor manufactured by Sylvania, listed as 1N4860A (circa 1979).

1N4768A semiconductor manufactured by Sylvania, listed as 1N4768A (circa 1979).

1N4695 semiconductor manufactured by Sylvania, listed as 1N4695 (circa 1979).

1N4510 semiconductor manufactured by Sylvania, listed as 1N4510 (circa 1979).

1N4415A semiconductor manufactured by Sylvania, listed as 1N4415A (circa 1979).