ITT Mackay Marine 600212-713-001
Standard ITT/Mackay Marine issue key for their SOLAS (Safety Of Life At Sea) radio installations during the 1970-1999 period.
This is a standard Nye Viking Morse key with a standard knob and standard nickle plating. That key was mounted inside a custom heavy steel box with snap on top lid which was held on by clips on the lid which held mating ball shaped tips which were atop pillars that were added to the Nye Viking key. Often the clips are broken, and this one is no exception as one of the sides of the clips has broken which makes the clip not hold the mating ball shaped tip which causes the cover to not be fixed in position and it moves around if touched. The box had a piece of non-skid foam rubber on the bottom which gave feel of the key a bit of a cushion when being used.
This was the standard key used in 1970-1999 for ship stations produced by ITT/Mackay. The radio station changed from the 1960s version of black panels to a more modern blue and silver and the radio equipment changed from being all vacuum tube to having transistorized receivers, including the battery powered “reserve receiver”, reserve transmitter was all transistorized with 40 watts modulated Morse type A2 output on 410-500 kHz.
This key came with a very heavy coiled cable to connect to the transmitter key jacks located on the transmitter control panel at the back of the desktop. The color of the box was “Merchant Marine Blue”.
These keys are quite rare and are a wonderful piece to remember USA ships and radio officers with.
73
DR
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
David J. Ring, Jr., N1EA
No virus found in this
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> I've heard about the Westclock key, but I have never heard of the other
> one you mention,
Westclox were a Scottish clock maker - famous for their "Big Ben" alarm
clock - what were they doing selling keys?
the modern Russian key - any photos of either Sandy?
Is that the one with the hinged lid and suppression components
underneath? Got a couple of them, quite nice.
--
Cheers and 73,
Stan Barr G0CLV GQRP-3369 FISTS-667 g0...@dsl.pipex.com
"Never leave well enough alone." - Raymond Loewy

----- Original Message -----From: D.J.J. Ring, Jr.Sent: Friday, April 06, 2012 9:33 PMSubject: [Radio Officers, &c] USA Morse Key - ITT Mackay Marine 600212-713-001
Answered my own query :-)
It appears Westclox manufactured WT 8 AMP keys for the 18 and 19 sets as
part of their war work during WW2. The Canadian keys appear to use the
bakelite base from a 8 AMP with a different mechanism.
I learned morse on the (in)famous 8 AMP key, occasionally without
sidetone - a skill I still have :-)
----- Original Message -----From: D.J.J. Ring, Jr.
The Russian keys are as you described. I bought two of them from a Russian
fellow on e-bay. They have back contacts as well if you need those for a
muting bus. The only "minus" of them is: eventually, I want to get apiece
of thick brass (1/4") and make bases the same size as the aluminium mounting
plate and screw the base on with countersunk head screws that will fit the
mounting holes. If I have to use a slightly larger screw, I have
countersinks that will handle that job.
The Westclox key wasn't around until we had a big job installing new
replacement Mackay MRU-35A HF racks on the older Lykes Steamship vessels to
replace the older CW and AM HF transmitters (2013's I think they were.
Don't remember the whole console designation.) Anyway, that key came with
the MRU-35 refit package. We did not replace the MRU-33 sets with the
bandswitched crystal oscillator modules (one for each band) but eventually
there was an interface built (engineer came to our shop in New Orleans as we
had the ONLY working MRU-33 in captivity!....and designed a (s.i.c.)
"interface unit" so the same synthesizer driver that was used in the MRU-35
could be used as an exciter for the old MRU-33's. If you never sailed with
an MRU-33, it had bandswitched taps and Input and output tuning capacitors
for EACH band! (4-22mhz.) This way the R/O supposedly didn't have to tune
up anything when switching from band to band manually. They ran originally
two PL175A's in parallel (later 4-400C's). One of the old time technicians
in our shop told the engineer, when he had the design complete, that it
would never work properly controlling the drive level "as advertised" to
which he gave the tech. a "jaundiced eye" look! This is why I called it a
s.i.c. "interface unit"! Fortunately we didn't have many of those! The
MRU-35A was a good unit if you tuned it properly and handled it with care.
The bandswitch was rather marginal in my opinion and the low pass filter
unit between the PA output and the RF-601 antenna tuner was sort of a
cobbled up "abortion" devised to make it pass the newer and very tight FCC
specs on harmonics! Had there been a "second generation" of this
transmitter, there would have been some beefier bandswitches needed and a
better low pass filter design needed. I installed perhaps half of the
MRU-35A refits on the old Lykes fleet. My big reservation was the use of
the top hat vertical antennas for the radiators. They worked, but the
Harris RF-601 autotuner units were sort of "iffy" on a couple of bands due
to "out of range" reactance values for a couple of the HF bands.
Anyway, I will send photos of the Russian key and the Westclox key soon.
Will try to take the photos in next few days.
73 to all,
Sandy Blaize W5TVW
ex- Mackay Depot New Orleans.
-----Original Message-----
From: Stan Barr
Sent: Saturday, April 07, 2012 2:42 AM
To: radio-o...@googlegroups.com
Subject: Re: [Radio Officers, &c] USA Morse Key - ITT Mackay Marine
600212-713-001
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As for the Mackay keys, I have one with the blue clip on key cover and the
key is marked "Speedx".
US ships always had key covers, the FCC would measure voltage across open
key and if it was 110v, a cover was required. The actual keying voltage,
through dropping R was higher than the relay rating to insure better keying.
JJ Miller 32 years with Mackay R & T/ITT Mackay
You are right! It's been quite a few years ago and I guess some of the
numbers are scrambled in my memory! THAT was one of the things I liked
about Marconi Marine gear, they all had unique names! "Oceanspan"
transmitter, "Crusader" transmitter, "Atalanta" receiver, "Apollo" receiver,
etc. One you never forgot was their old "Radiolocator Mk IV radar! The
best they had and probably one of the most difficult to work on was the
"Hermes" radar. All that stuff is probably scrap by now. I still have my
Marconi 365 straight keyI scrounged one day when a sparks had a few spares
and asked if I wanted one!
Sadly, those days are gone forever......like arc and spark
transmitters.....rapidly fading into the past. How many "newbies" know who
Edwin Armstrong was, or "General" David Sarnoff was, or that the tradename
"Motorola" was originally the "Galvin Radio Corp."?
73,
Sandy W5TVW
Version: 2012.0.1913 / Virus Database: 2411/4924 - Release Date: 04/09/12
Richard, AA1P
A large number of ships were "mothballed" in the Port Arthur area at one
time, but I don't know if any are still there or if they were all sailed on
their final voyage to the ship breakers in the far East.
This is strictly the Lykes Lines cargo ships I am referring to. Can't tell
you anything about Delta Lines, Waterman Steamship, etc.
73
Sandy W5TVW
Richard, AA1P
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I have a burning question: What happened to all that nice equipment that
came off the ships? There is very little around.
Richard, AA1P
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