1N5760 semiconductor manufactured by Sylvania, listed as 1N5760 (circa 1979).

1N5588A semiconductor manufactured by Sylvania, listed as 1N5588A (circa 1979).

1N5538A semiconductor manufactured by Sylvania, listed as 1N5538A (circa 1979).

1N5388A semiconductor manufactured by Sylvania, listed as 1N5388A (circa 1979).

1N5348B semiconductor manufactured by Sylvania, listed as 1N5348B (circa 1979).

1N5261A semiconductor manufactured by Sylvania, listed as 1N5261A (circa 1979).

1N5222A semiconductor manufactured by Sylvania, listed as 1N5222A (circa 1979).

1N5759A semiconductor manufactured by Sylvania, listed as 1N5759A (circa 1979).

1N5588 semiconductor manufactured by Sylvania, listed as 1N5588 (circa 1979).

1N5538 semiconductor manufactured by Sylvania, listed as 1N5538 (circa 1979).

1N5388 semiconductor manufactured by Sylvania, listed as 1N5388 (circa 1979).

1N5348A semiconductor manufactured by Sylvania, listed as 1N5348A (circa 1979).

1N5261 semiconductor manufactured by Sylvania, listed as 1N5261 (circa 1979).

1N5222 semiconductor manufactured by Sylvania, listed as 1N5222 (circa 1979).

1N5759 semiconductor manufactured by Sylvania, listed as 1N5759 (circa 1979).

1N5587B semiconductor manufactured by Sylvania, listed as 1N5587B (circa 1979).

1N5537B semiconductor manufactured by Sylvania, listed as 1N5537B (circa 1979).

1N5387A semiconductor manufactured by Sylvania, listed as 1N5387A (circa 1979).

1N5348 semiconductor manufactured by Sylvania, listed as 1N5348 (circa 1979).

1N5260B semiconductor manufactured by Sylvania, listed as 1N5260B (circa 1979).