By
David F. Plant, K9LAJ/2
This
paper originally appeared in CQ Magazine, July
1967. Permission to present it here has been
granted by CQ Communications, Inc., and they
retain all rights to its distribution and
reproduction. Only not-for-profit personal use
is authorized for any hardcopy printouts of
this page. I want to thank Ms. Gail Schieber,
CQ Managing Editor, for her support of the
Millen Page project.
There is a story behind
those unchanging Millen ads that appear year
after year in CQ. It is the story of a man who
pioneered in the state of the art many of the
things that we now take for granted, for
r.f.chokes, coil forms, variable capacitors,
and the famous Millen dials all owe at least
part of their existence to his influence.
James Millen fathered the concept of superior
mechanical, as well as electrical design that
has become a standard in the electronics
industry.
Early Days
Radio has a lure
all its own and it can strike at any time or
stage in a man's life. It hit Jim Millen while
he was attending high school in Forest Hills,
Long Island. The fascination of communication
by wireless... By 1916 Jim has a station on
the air.
In those days ham radio was a bit different.
You took a spark coil from a Ford motorcar and
souped it up by adding larger contacts so it
could handle the 110 volt d.c. house current
instead of the 6 volts for which the coil was
designed. This coil then excited a helix coil
affair which was tuned by a large home made
capacitor. The Q was very low and the
resultant signal was quite broad, being
somewhere around the upper part of the present
broadcast band. This spark signal was received
with either a galena or electrolytic type of
detector and a set of headphones, and sounded
like a raspy buzzy note that wasn't the most
pleasant sort of thing. Those who wanted to
improve the sound of the transmitted signal
used a rotary spark-gap , imparting a high
audio frequency whine which acted to modulate
the transmitted signal. This was the state of
the art before the First World War.
After the war to end all wars was over, and
the world went back to what it was doing
before, amateur radio operators went back to
experimenting with several new pieces of
apparatus developed for the war effort. The
most noted was the tube called the J-type
manufactured by the Western Electric Company
and it found widespread use in both
transmitting and receiving modes. It replaced
the spark transmitter when used as a keyed
triode oscillator, and as a gridleak detector
proved superior to the crystal set. Jim was
among those experimenting and learning on the
ham bands around 200 meters.
Herbert Hoover Sr., 6DH personally signed all
licenses issued by the Department of Commerce
and Jim Millen was given the call 2BYP in
1921.
Upon graduation from high school Jim studied
mechanical engineering (there being no formal
course of study in electronics at the time) at
Stevens Institute. During the 4 year course of
study, 1922-1926, Jim Millen started making
receivers as his first commercial enterprise
and the October 1922 issue of Radio News
Magazine carried the original Millen
Advertisement.
Other magazines also started carrying the
Millen name, first with pen and ink drawings
of radio diagrams, then a question and answer
column, and finally Jim ended up writing a
monthly technical article. Starting as a means
to help pay tuition, writing was to become a
very important part of a fascinating career.
The 4 years spent at Stevens earning the M.E.
degree were interesting ones as many of the
pioneers of the electronics field either
taught, or were classmates of Jim's. Dr. Alan
Hazeltine, the designer of the Nuetrodyne
circuit; Paul Ware, founder of Ware Radio; and
Larry Horle, of Federal Radio were on the
staff and Ted Smith, later of RCA, was a
fellow student.
Upon graduation from Stevens, Jim worked on
the editorial staff of Radio Broadcast
Magazine, published by the
Doubleday-Page Company. Contributions were
also made to the other radio magazines.
James Millen then decided to put his
experience to use in consulting work and a
company was formed. Working closely with
companies that were to become famous in the
electronics field, clients included the
American Appliance Company (called Raytheon a
year later), the Ceco Tube Company of
Providence, R.I. and the National Toy Company.
RKO Studios also became a customer when they
came to New York to make their first two
"Talking Pictures."
During this period of time Arthur Lynch took
over the management of radio WRNY and Radio
News Magazine. He also had started a
resistor manufacturing company developing
among other things a solid-state diode long
before current solid-state technology. Millen
worked with him while attending Stevens, and
continued while doing consulting.
One of Jim's clients, the National Toy
Company, was attempting to break into the
"new" radio industry and made a deal with him
to put them in the field. In 1928 Jim took
over operation of National and entered a very
fascinating part of his career.
The National Radio
Days
The First step
was to have National enter the amateur
receiver market. Combining his mechanical
engineering background with electronic
experience gained through operating and
experimenting, Jim produced the first of a
long list of good receivers. The model was
called the SW-5 and it met with immediate
success, as it enabled the shortwave listener
or ham to have a good factory wired receiver
at a resonable cost.
The SW-5 was originally a battery powered unit
and required husky batteries for the filament
supply, so research was done to see if it
would be feasible to run a shortwave radio
from the power lines. The problems encountered
seemed insurmountable at first; for a.c. on
the filaments of the tubes caused a hum in the
loadspeaker, and instability at the higher
frequencies. Better tubes and a lot of
research time in the laboratory overcame the
hum problems finally and the shortwave
listener could eliminate the bulky storage
battery. Trying to rectify the power line
voltage to provide d.c. voltage for the plate
supply was the next step, and problems were
met here also because the c.w. signal from the
receiver had an annoying ripple until power
supply filtering techniques were perfected.
Jim and his group seemed to thrive on
challenges. After a model was built they
looked for ways to make it better, less
expensive, or more universal. After the SW-5
came the SW-3. It was more compact, lighter
(suggested use in aircraft) and required less
current from batteries. The SW-4 and FB-7
evolved next, then the classic National HRO
was developed followed by the NC-100, NC-200,
etc. Men that helped in the design of these
receivers included Dave Grimes, R.S. Kruse,
and Zeh Bouck.
Going north along Route One from Boston brings
one to Malden, Massachusetts, the home of the
National Radio Company. The Millen home,
located nearby, proved a natural for testing
new designs, antennas, or frequencies. The
location also had other advantages. This
writer found it peaceful and beautifully
scenic - just the place to experiment and
operate, or write.
QST at that time was being run by Ross Hull,
and he and K.B. Warner, the League's manager,
were close friends to Jim Millen. The close
cooperation of these men made possible the
sharing of new developments with the amateur
fraternity almost on a monthly basis, as much
of the experimenting and editorial work for
QST was done at the Millen shack.
The Radio Amateur's Handbook as we
know it today also came about through the
Millen-QST relationship. In the early 30's it
was a pamphlet-sized affair until Jim
underwrote the cost of a larger and more
complete book. National Radio, under Millen,
became the first advertiser.
This period of time also brought about some
historical v.h.f. work. Under the leadership
of Ross Hull, Jim Millen participated as the
Boston station of a triangular setup with each
leg consisting of a 100 mile path. Recorders
were set up to measure the reliability of the
nightly transmissions on the 5-meter band. The
favorable results of the experiment paved the
way for the later allocated 2 and 6 meter
bands. Ross Hull was killed in an accident
before he was able to compile all the data,
but he did give several talks before
scientific societies in Washington. The
equipment used consisted of push-pull 800's
running over a hundred watts and feeding a
large 8-element array at each station. The
receivers used were of National manufacture
and were superregenerative.
Other "Firsts" during Jim's stay at National
included the backing of Jim Lamb on his single
signal crystal filter work, the use of Red
Cross TB stamps affixed to a National ad in
QST as a charity gesture, and the initiation
of the monthly series of "Personal Message"
type of advertisments starting with the March
1934 issue of QST. This form of advertising is
still being carried on by others.
Perhaps one of the most important
contributions to the state of the art occurred
in 1934 when the present design of the r.f.
choke was developed. Prior to that time chokes
were wound on high value resistors or wooden
sticks, much the same way we do now if an
experimental choke is needed. Many chokes were
made and tested to determine hot spots and
frequency range, and finally a predictable and
mechanical sound choke came about, Jim was
issued a patent on October 2, 1934, and the
2.5mhy choke quickly became a standard
throughout the industry.
James Millen also continued his writing and
many of the designs of the National Company
were shared with hams through magazine
articles and a number of books including Radio
Design Practice, and an excellent
v.h.f. text, called Below Ten Meters.
Numerous pamphlets were also printed so that
amateurs could duplicate National's designs.
The newly developed air transportation
services discovered that ham radio equipment
worked well for ground to air communication
and in the late 20's and early 30's became a
large, but little known customer of the
National Company. National was doing well.
In 1939 the National Radio Company went
"Public". During the same year James Millen
made a friendly withdrawal from the company,
and along with several associates started the
James Millen Manufacturing Company. An
announcement of the newly formed company was
run in the May, 1939 QST.
Jim had started the policy early in his career
of working with the very best talent possible
and made no exception when the manufacturing
company was started. John Di Blasi, 2FX, and
Charlie Cooper, both well known men in their
fields, were among those that Jim brought with
him.
John, 2FX, is perhaps best known to readers of
CQ as the founder and president of the
Quarter Century Wireless Association. He is
also the New York representative of Millen
Manufacturing.
The late Charlie Cooper had also an
interesting life. He was an early associate of
DeForest, and later founded the Ship Owner's
Radio Service. The latter provided wireless
for boats and eventually became part of RCA.
Charlie was also a poet and often delighted
the company with verse.
The summer of '39 was an active one as many
items of manufacture were reviewed by Millen
and his associates to see what improvements
could be made. Tools were designed and made,
and a factory was leased in the fall. A
catalog was then released and James Millen was
in business.
The importance of good mechanical design in
the manufacture of electronic components was
always stressed during Jim's career. At
National Radio, a good example of this
approach could be found in the HRO receiver.
Here, the main emphasis was placed on the
tuning capacitor and dial combination. The
time was well spent as the receiver met with
great success. The practice of good mechanical
and electrical design was carried over to the
Millen Company and the company slogan
"Designed For Application" became well earned.
Although the Millen factory originally started
making components, they soon began the
manufacture of electronic equipment.
Oscilloscopes were built for RCA, and the
first commercial two-way f.m. radio equipment
was designed and built for G.E.
Looking for ways of combining electronic with
mechnical design has brought James Millen to
many places throughout the world. Trips to
Europe enabled the American manufacture of
items such as coil forms, tube sockets, sheets
and tubing made with polystyrene and other low
loss injection moldable plastics shortly after
their European discovery.
Another important type of component developed
at Millen was the magnetic metal shield. Using
commercially available ingots of Mu Metal made
in Trenton, New Jersey by the Henry Porter
laboratory, the Millen people pioneered in the
manufacture of custom and stock magnetic
shielding for cathode ray tubes, photo
multipliers, and klystrons.
During the Second World War the Millen Company
worked with G.E. to produce the "continuous"
type of delay cable and the neccessary
machinery for its production. Twenty years
later finds the Millen Company still the
exclusive manufacturer of this component
group.
One of the best known items in current
manufacture is the Millen Grid Dip Meter. This
precision device combines the excellent
mechnical design of the Millen Works with the
electronic experience of CQ's own Bill
Sherer, W2AEF, and is found in many labs and
shops.
Although many items at the Millen factory are
components and assembled units for private
industry, laboratory work, and government; the
major emphasis is still designed in the
communications field.
Among the may parts found in the current
catalog are a complete line of variable
capacitors for both transmitting and
receiving, coils of many shapes and values,
sockets and terminals, oscilloscopes and their
accessories, and many types of special
hardware. Of special interest to the radio
amateur is the transmitting equipment, antenna
matching devices, and the famous dipper. The
Millen dials and couplings have also found
popularity among hams.
A recent development from the Millen Works is
their "No-String" dial and it has already
found wide acceptance in the amateur ranks for
v.f.o.'s and other tuning applications.
The Millen plant is completely self contained
so they can perform all stages of manufacture
including the making of tools and dies. This
approach allows the company to immediately
change or design an item without having to go
through the usual time-consuming channels.
Better quality control is also assured.
With the company well established Jim now has
the time to follow other interests. These
include the Vice Chairmanship of a large
suburban Boston bank, and boating. Also
maintained is a complete electronics library
including publications pertaining to radio
from the very beginning. Early catalogs,
complete collections of Radio, QST,and
CQ are kept as well as many books and
magazines now out of print. Also in the
library is a complete ham station that Jim
uses to keep weekly skeds on 75 s.s.b.
Spaning over 50 years in the radio business,
the life of James Millen surely ranks as one
of the most productive we're likely to see.
"Designed for Application" will continue to be
a way of life to this vigorous, brilliant and
imaginative pioneer of the electronics
industry.
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