1N1583 semiconductor manufactured by United Technical Publications, listed as 1N1583 (circa 1969).

1N1582 semiconductor manufactured by United Technical Publications, listed as 1N1582 (circa 1969).

1N1581 semiconductor manufactured by United Technical Publications, listed as 1N1581 (circa 1969).

1N1488 semiconductor manufactured by United Technical Publications, listed as 1N1488 (circa 1969).

1N1348A semiconductor manufactured by United Technical Publications, listed as 1N1348A (circa 1969).

1N1348 semiconductor manufactured by United Technical Publications, listed as 1N1348 (circa 1969).

1N1347A semiconductor manufactured by United Technical Publications, listed as 1N1347A (circa 1969).

1N1346A semiconductor manufactured by United Technical Publications, listed as 1N1346A (circa 1969).

1N1346 semiconductor manufactured by United Technical Publications, listed as 1N1346 (circa 1969).

1N1345A semiconductor manufactured by United Technical Publications, listed as 1N1345A (circa 1969).

1N1344A semiconductor manufactured by United Technical Publications, listed as 1N1344A (circa 1969).

1N1344 semiconductor manufactured by United Technical Publications, listed as 1N1344 (circa 1969).

1N1342A semiconductor manufactured by United Technical Publications, listed as 1N1342A (circa 1969).

1N1341A semiconductor manufactured by United Technical Publications, listed as 1N1341A (circa 1969).

1N1341 semiconductor manufactured by United Technical Publications, listed as 1N1341 (circa 1969).

1N1262 semiconductor manufactured by United Technical Publications, listed as 1N1262 (circa 1969).

1N1239 semiconductor manufactured by United Technical Publications, listed as 1N1239 (circa 1969).

1N1206 semiconductor manufactured by United Technical Publications, listed as 1N1206 (circa 1969).

1N1205 semiconductor manufactured by United Technical Publications, listed as 1N1205 (circa 1969).

1N1204 semiconductor manufactured by United Technical Publications, listed as 1N1204 (circa 1969).