2N2199 semiconductor manufactured by United Technical Publications, listed as 2N2199 (circa 1969).

2N1606 semiconductor manufactured by United Technical Publications, listed as 2N1606 (circa 1969).

2N1132 semiconductor manufactured by United Technical Publications, listed as 2N1132 (circa 1969).

2N721 semiconductor manufactured by United Technical Publications, listed as 2N721 (circa 1969).

2N499A semiconductor manufactured by United Technical Publications, listed as 2N499A (circa 1969).

2N3014 semiconductor manufactured by United Technical Publications, listed as 2N3014 (circa 1969).

2N2537 semiconductor manufactured by United Technical Publications, listed as 2N2537 (circa 1969).

2N2195B semiconductor manufactured by United Technical Publications, listed as 2N2195B (circa 1969).

2N1500 semiconductor manufactured by United Technical Publications, listed as 2N1500 (circa 1969).

2N1131B semiconductor manufactured by United Technical Publications, listed as 2N1131B (circa 1969).

2N928 semiconductor manufactured by United Technical Publications, listed as 2N928 (circa 1969).

2N499 semiconductor manufactured by United Technical Publications, listed as 2N499 (circa 1969).

2N3013 semiconductor manufactured by United Technical Publications, listed as 2N3013 (circa 1969).

2N2195A semiconductor manufactured by United Technical Publications, listed as 2N2195A (circa 1969).

2N1499A semiconductor manufactured by United Technical Publications, listed as 2N1499A (circa 1969).

2N1131A semiconductor manufactured by United Technical Publications, listed as 2N1131A (circa 1969).

2N927 semiconductor manufactured by United Technical Publications, listed as 2N927 (circa 1969).

2N720 semiconductor manufactured by United Technical Publications, listed as 2N720 (circa 1969).

2N3012 semiconductor manufactured by United Technical Publications, listed as 2N3012 (circa 1969).

2N2195 semiconductor manufactured by United Technical Publications, listed as 2N2195 (circa 1969).