1N979B semiconductor manufactured by United Technical Publications, listed as 1N979B (circa 1969).

1N739A semiconductor manufactured by United Technical Publications, listed as 1N739A (circa 1969).

1N2978B semiconductor manufactured by United Technical Publications, listed as 1N2978B (circa 1969).

1N1808A semiconductor manufactured by United Technical Publications, listed as 1N1808A (circa 1969).

1N978B semiconductor manufactured by United Technical Publications, listed as 1N978B (circa 1969).

1N738A semiconductor manufactured by United Technical Publications, listed as 1N738A (circa 1969).

1N977B semiconductor manufactured by United Technical Publications, listed as 1N977B (circa 1969).

1N737A semiconductor manufactured by United Technical Publications, listed as 1N737A (circa 1969).

1N976B semiconductor manufactured by United Technical Publications, listed as 1N976B (circa 1969).

1N736A semiconductor manufactured by United Technical Publications, listed as 1N736A (circa 1969).

1N1805A semiconductor manufactured by United Technical Publications, listed as 1N1805A (circa 1969).

1N1802A semiconductor manufactured by United Technical Publications, listed as 1N1802A (circa 1969).

1N975B semiconductor manufactured by United Technical Publications, listed as 1N975B (circa 1969).

1N735A semiconductor manufactured by United Technical Publications, listed as 1N735A (circa 1969).

1N1804A semiconductor manufactured by United Technical Publications, listed as 1N1804A (circa 1969).

1N1801A semiconductor manufactured by United Technical Publications, listed as 1N1801A (circa 1969).

1N974B semiconductor manufactured by United Technical Publications, listed as 1N974B (circa 1969).

1N734A semiconductor manufactured by United Technical Publications, listed as 1N734A (circa 1969).

1N973B semiconductor manufactured by United Technical Publications, listed as 1N973B (circa 1969).

1N733A semiconductor manufactured by United Technical Publications, listed as 1N733A (circa 1969).