74132A semiconductor manufactured by Sylvania, listed as 74132A (circa 1979).

74128A semiconductor manufactured by Sylvania, listed as 74128A (circa 1979).

74126A semiconductor manufactured by Sylvania, listed as 74126A (circa 1979).

74109B semiconductor manufactured by Sylvania, listed as 74109B (circa 1979).

74021 semiconductor manufactured by Sylvania, listed as 74021 (circa 1979).

7449 semiconductor manufactured by Sylvania, listed as 7449 (circa 1979).

74470C semiconductor manufactured by Sylvania, listed as 74470C (circa 1979).

7431 semiconductor manufactured by Sylvania, listed as 7431 (circa 1979).

7429 semiconductor manufactured by Sylvania, listed as 7429 (circa 1979).

7428A semiconductor manufactured by Sylvania, listed as 7428A (circa 1979).

7493 semiconductor manufactured by Sylvania, listed as 7493 (circa 1979).

7419 semiconductor manufactured by Sylvania, listed as 7419 (circa 1979).

74850C semiconductor manufactured by Sylvania, listed as 74850C (circa 1979).

7408A semiconductor manufactured by Sylvania, listed as 7408A (circa 1979).

7407A semiconductor manufactured by Sylvania, listed as 7407A (circa 1979).

7404A semiconductor manufactured by Sylvania, listed as 7404A (circa 1979).

7400N semiconductor manufactured by Sylvania, listed as 7400N (circa 1979).

7400A semiconductor manufactured by Sylvania, listed as 7400A (circa 1979).

74S14C semiconductor manufactured by Sylvania, listed as 74S14C (circa 1979).

7441A semiconductor manufactured by Sylvania, listed as 7441A (circa 1979).