LM3072N semiconductor manufactured by Sylvania, listed as LM3072N (circa 1979).

LM3072 semiconductor manufactured by Sylvania, listed as LM3072 (circa 1979).

LM1133 semiconductor manufactured by Sylvania, listed as LM1133 (circa 1979).

LM3071N semiconductor manufactured by Sylvania, listed as LM3071N (circa 1979).

LM3071 semiconductor manufactured by Sylvania, listed as LM3071 (circa 1979).

LM3070N semiconductor manufactured by Sylvania, listed as LM3070N (circa 1979).

LM335 semiconductor manufactured by Sylvania, listed as LM335 (circa 1979).

LM3070 semiconductor manufactured by Sylvania, listed as LM3070 (circa 1979).

LM1123H semiconductor manufactured by Sylvania, listed as LM1123H (circa 1979).

LM324N semiconductor manufactured by Sylvania, listed as LM324N (circa 1979).

LM733A semiconductor manufactured by Sylvania, listed as LM733A (circa 1979).

LM3067N semiconductor manufactured by Sylvania, listed as LM3067N (circa 1979).

LM1120C semiconductor manufactured by Sylvania, listed as LM1120C (circa 1979).

LM324J semiconductor manufactured by Sylvania, listed as LM324J (circa 1979).

LM3067 semiconductor manufactured by Sylvania, listed as LM3067 (circa 1979).

LM1120B semiconductor manufactured by Sylvania, listed as LM1120B (circa 1979).

LM324D semiconductor manufactured by Sylvania, listed as LM324D (circa 1979).

LM3066 semiconductor manufactured by Sylvania, listed as LM3066 (circa 1979).

LM3065N semiconductor manufactured by Sylvania, listed as LM3065N (circa 1979).

LM1117 semiconductor manufactured by Sylvania, listed as LM1117 (circa 1979).