1N5401 semiconductor manufactured by United Technical Publications, listed as 1N5401 (circa 1969).

1N1218B semiconductor manufactured by United Technical Publications, listed as 1N1218B (circa 1969).

1N4817 semiconductor manufactured by United Technical Publications, listed as 1N4817 (circa 1969).

1N5391 semiconductor manufactured by United Technical Publications, listed as 1N5391 (circa 1969).

1N5400 semiconductor manufactured by United Technical Publications, listed as 1N5400 (circa 1969).

1N1217B semiconductor manufactured by United Technical Publications, listed as 1N1217B (circa 1969).

1N4816 semiconductor manufactured by United Technical Publications, listed as 1N4816 (circa 1969).

1N5390 semiconductor manufactured by United Technical Publications, listed as 1N5390 (circa 1969).

2N4415A semiconductor manufactured by United Technical Publications, listed as 2N4415A (circa 1969).

2N4415 semiconductor manufactured by United Technical Publications, listed as 2N4415 (circa 1969).

2N4414A semiconductor manufactured by United Technical Publications, listed as 2N4414A (circa 1969).

2N4414 semiconductor manufactured by United Technical Publications, listed as 2N4414 (circa 1969).

2N4413A semiconductor manufactured by United Technical Publications, listed as 2N4413A (circa 1969).

2N4413 semiconductor manufactured by United Technical Publications, listed as 2N4413 (circa 1969).

2N4412A semiconductor manufactured by United Technical Publications, listed as 2N4412A (circa 1969).

2N4412 semiconductor manufactured by United Technical Publications, listed as 2N4412 (circa 1969).

2N4386 semiconductor manufactured by United Technical Publications, listed as 2N4386 (circa 1969).

2N4385 semiconductor manufactured by United Technical Publications, listed as 2N4385 (circa 1969).

2N4384 semiconductor manufactured by United Technical Publications, listed as 2N4384 (circa 1969).

2N4383 semiconductor manufactured by United Technical Publications, listed as 2N4383 (circa 1969).