1N1799A semiconductor manufactured by United Technical Publications, listed as 1N1799A (circa 1969).

1N972B semiconductor manufactured by United Technical Publications, listed as 1N972B (circa 1969).

1N732A semiconductor manufactured by United Technical Publications, listed as 1N732A (circa 1969).

1N1374A semiconductor manufactured by United Technical Publications, listed as 1N1374A (circa 1969).

1N1798A semiconductor manufactured by United Technical Publications, listed as 1N1798A (circa 1969).

1N971B semiconductor manufactured by United Technical Publications, listed as 1N971B (circa 1969).

1N731A semiconductor manufactured by United Technical Publications, listed as 1N731A (circa 1969).

1N1373A semiconductor manufactured by United Technical Publications, listed as 1N1373A (circa 1969).

1N1797A semiconductor manufactured by United Technical Publications, listed as 1N1797A (circa 1969).

1N970B semiconductor manufactured by United Technical Publications, listed as 1N970B (circa 1969).

1N730A semiconductor manufactured by United Technical Publications, listed as 1N730A (circa 1969).

1N2500A semiconductor manufactured by United Technical Publications, listed as 1N2500A (circa 1969).

1N1372A semiconductor manufactured by United Technical Publications, listed as 1N1372A (circa 1969).

1N1796A semiconductor manufactured by United Technical Publications, listed as 1N1796A (circa 1969).

1N969B semiconductor manufactured by United Technical Publications, listed as 1N969B (circa 1969).

1N729A semiconductor manufactured by United Technical Publications, listed as 1N729A (circa 1969).

1N3013B semiconductor manufactured by United Technical Publications, listed as 1N3013B (circa 1969).

1N2499A semiconductor manufactured by United Technical Publications, listed as 1N2499A (circa 1969).

1N1371A semiconductor manufactured by United Technical Publications, listed as 1N1371A (circa 1969).

1N1795A semiconductor manufactured by United Technical Publications, listed as 1N1795A (circa 1969).