1N5384 semiconductor manufactured by Sylvania, listed as 1N5384 (circa 1979).

1N5315 semiconductor manufactured by Sylvania, listed as 1N5315 (circa 1979).

1N5257B semiconductor manufactured by Sylvania, listed as 1N5257B (circa 1979).

1N5213 semiconductor manufactured by Sylvania, listed as 1N5213 (circa 1979).

1N5753B semiconductor manufactured by Sylvania, listed as 1N5753B (circa 1979).

1N5584A semiconductor manufactured by Sylvania, listed as 1N5584A (circa 1979).

1N5534A semiconductor manufactured by Sylvania, listed as 1N5534A (circa 1979).

1N5383B semiconductor manufactured by Sylvania, listed as 1N5383B (circa 1979).

1N5344B semiconductor manufactured by Sylvania, listed as 1N5344B (circa 1979).

1N5257A semiconductor manufactured by Sylvania, listed as 1N5257A (circa 1979).

1N5212 semiconductor manufactured by Sylvania, listed as 1N5212 (circa 1979).

1N5753 semiconductor manufactured by Sylvania, listed as 1N5753 (circa 1979).

1N5534 semiconductor manufactured by Sylvania, listed as 1N5534 (circa 1979).

1N5383A semiconductor manufactured by Sylvania, listed as 1N5383A (circa 1979).

1N5344A semiconductor manufactured by Sylvania, listed as 1N5344A (circa 1979).

1N5257 semiconductor manufactured by Sylvania, listed as 1N5257 (circa 1979).

1N5211 semiconductor manufactured by Sylvania, listed as 1N5211 (circa 1979).

1N5752B semiconductor manufactured by Sylvania, listed as 1N5752B (circa 1979).

1N5583A semiconductor manufactured by Sylvania, listed as 1N5583A (circa 1979).

1N5533B semiconductor manufactured by Sylvania, listed as 1N5533B (circa 1979).