LM1808N semiconductor manufactured by Sylvania, listed as LM1808N (circa 1979).

LM386N semiconductor manufactured by Sylvania, listed as LM386N (circa 1979).

LM1800N semiconductor manufactured by Sylvania, listed as LM1800N (circa 1979).

LM386 semiconductor manufactured by Sylvania, listed as LM386 (circa 1979).

LM1800 semiconductor manufactured by Sylvania, listed as LM1800 (circa 1979).

LM383T semiconductor manufactured by Sylvania, listed as LM383T (circa 1979).

LM1795 semiconductor manufactured by Sylvania, listed as LM1795 (circa 1979).

LM383 semiconductor manufactured by Sylvania, listed as LM383 (circa 1979).

LM1614M semiconductor manufactured by Sylvania, listed as LM1614M (circa 1979).

LM380N semiconductor manufactured by Sylvania, listed as LM380N (circa 1979).

LM1614D semiconductor manufactured by Sylvania, listed as LM1614D (circa 1979).

LM380 semiconductor manufactured by Sylvania, listed as LM380 (circa 1979).

LM1566F semiconductor manufactured by Sylvania, listed as LM1566F (circa 1979).

LM378 semiconductor manufactured by Sylvania, listed as LM378 (circa 1979).

LM1540C semiconductor manufactured by Sylvania, listed as LM1540C (circa 1979).

LM377N semiconductor manufactured by Sylvania, listed as LM377N (circa 1979).

LM1540 semiconductor manufactured by Sylvania, listed as LM1540 (circa 1979).

LM377 semiconductor manufactured by Sylvania, listed as LM377 (circa 1979).

LM1502H semiconductor manufactured by Sylvania, listed as LM1502H (circa 1979).

LM1501H semiconductor manufactured by Sylvania, listed as LM1501H (circa 1979).