
Dennis- The dose
of personal nostalgia that your newsletters usually bring for
me is the photo this month of Tech's early analog computer.
It is a model EC-1 Heathkit educational computer, one of, if
not the
first, in a product line that
is one of only two vestiges that remain of the well-known Heathkit
do-it-yourself line of consumer electronic kits popular in
the '50s
through the '70s. The VTVM to the right of the EC-1 is also
a Heathkit
but not the oscilloscope. When I went to
work for Heath as a design engineer in 1957, I was the second
degreed
engineering employee, the first being Carl Heald, BSEE '55,
who was
involved in the design of the EC-1. Not many EC-1's were sold
so if it
is gathering dust somewhere
on campus, with the MTU connection, it does have some historical
value. Heath Company is still located here in St. Joseph producing self-study
and vocational school products in the electronics field.
The other vestige referred to earlier is
the Heath/Zenith line of home automation/security products
sold at big
box DIY and chain hardware retailers. Heath was a fun place
to work as
a single design engineer was entirely responsible for a new
product
development, even, early
on, to writing the assembly manual. Lots of personal pride
if the
product sold well. But the electronic kit business declined
in the
late '70s and early '80s due to better and lower cost assembled
product imports. I took advantage of another
employment opportunity in 1979 but still enjoy the nostalgia
seeing
Heathkits pictured or mentioned in today's media.
-Al Robertson,
BSEE '54
***
Dennis
If you go up to the 5th or 6th floor (not sure which) of the
ME-EM building you’ll probably find some of this stuff in one of
the display cases they have along the walls. I know I found the WANG
Calculator that we used to use back then for simple math problems, along
with a bunch of other test instruments and stuff that I know came out
of some of the labs I worked in back when I was a student.
I still have and use to this day a Heathkit VTVM (Vacuum Tube Volt-Ohm
Meter)…
http://www.heathkit-museum.com/test/hvmim-11.shtml
…which I built while still in high school. As I said before, I
started out at Da Tech as a Double-E but then discovered that ‘Electronics’ hadn’t
quite caught-up with the curriculum and besides, I spent the
summer between my freshman and sophomore year working as a draftsmen at
a company in Saginaw and got a chance to see what both Electrical and Mechanical
Engineers did in the real world and immediately switched to ME once I got
back to school in the fall of 1966. I still play with old electronic gear
as a bit of a hobby and have a couple of radios which ‘glow in the
dark’ (meaning
that they have ‘tubes’).
BTW, I attended the Alumni get-together
in SoCal last week and got a chance to meet President Mroz and
hear the really interesting presentation by the Friedrich’s.
As for the analog computer in Fisher Hall, the really weird one was the
Analog/Digital hybrid that ‘Black Jack’ McMillin was working
on when I was a student there in the mid- to late-60’s. He was convinced
that pure digital computers would never be able to be fully integrated
into our ‘Analog’ world and he was looking for that ideal mix,
however by the time the 70’s got rolling the Digital era was gaining
speed, literally. But that did not mean that Analogs were dead as far as
the classrooms were concerned since they still allowed you to solve many
mechanical problems in ‘real-time’. In the fall of 1970 we
were still using Analog computers in such ME-EM classes as Vibrations,
not ones with the big slanted chassis as shown in the photo, but slightly
smaller Heathkits which were about the size and shape of a large microwave
oven.
And as far as the ME-EM department was concerned, they thought Analogs
were going to be around for some time as I helped design and
layout a new Analog lab, complete with new systems that could
be linked to a master console where the instructor could set-up a problem
which the entire class could access. This new dedicated Analog lab was
planned for the new ME-EM building, then under construction (1970-71),
but which I understand was used only a couple of years before being scraped
as the Digital era fully took hold. BTW, I started out at MTU as an Electrical
major but switched to ME after my first year, but when we started
to use those Analog computers suddenly my old EE ‘skills’ were
in demand since you had to set-up L-C (Inductor-Capacitor) circuits to
simulate the time-dependent behavior of decaying systems like mechanical
vibrations and harmonic resonance conditions. Ah, the good’ol days.
John
R. Baker
Class of 1971