1N745A semiconductor manufactured by United Technical Publications, listed as 1N745A (circa 1969).

1N1814A semiconductor manufactured by United Technical Publications, listed as 1N1814A (circa 1969).

1N1765A semiconductor manufactured by United Technical Publications, listed as 1N1765A (circa 1969).

1N984B semiconductor manufactured by United Technical Publications, listed as 1N984B (circa 1969).

1N744A semiconductor manufactured by United Technical Publications, listed as 1N744A (circa 1969).

1N2983B semiconductor manufactured by United Technical Publications, listed as 1N2983B (circa 1969).

1N1813A semiconductor manufactured by United Technical Publications, listed as 1N1813A (circa 1969).

1N983B semiconductor manufactured by United Technical Publications, listed as 1N983B (circa 1969).

1N743A semiconductor manufactured by United Technical Publications, listed as 1N743A (circa 1969).

1N1812A semiconductor manufactured by United Technical Publications, listed as 1N1812A (circa 1969).

1N982B semiconductor manufactured by United Technical Publications, listed as 1N982B (circa 1969).

1N742A semiconductor manufactured by United Technical Publications, listed as 1N742A (circa 1969).

1N2981B semiconductor manufactured by United Technical Publications, listed as 1N2981B (circa 1969).

1N1811A semiconductor manufactured by United Technical Publications, listed as 1N1811A (circa 1969).

1N981B semiconductor manufactured by United Technical Publications, listed as 1N981B (circa 1969).

1N741A semiconductor manufactured by United Technical Publications, listed as 1N741A (circa 1969).

1N1810A semiconductor manufactured by United Technical Publications, listed as 1N1810A (circa 1969).

1N980B semiconductor manufactured by United Technical Publications, listed as 1N980B (circa 1969).

1N740A semiconductor manufactured by United Technical Publications, listed as 1N740A (circa 1969).

1N1809A semiconductor manufactured by United Technical Publications, listed as 1N1809A (circa 1969).