Use Google and search for information.  It's a lot quicker than waiting for someone to post here.  It's also possible that nobody knows the answer to the question.  But back to Google...it took me less than five seconds to come up with this:

Company
M.A.S. Enterprises

UHF Technik

104 King Street South

St. Jacobs ON N0B 2N0

Canada

Tel: 519-664-2896

519-664-1273

Fax: 519-664-3082

Email: mas@golden.org

Products and Services
AMPLIFIER; ANTENNA>COAX; ANTENNA>DUPLEXER; ANTENNA>SATELLITE ANTENNA; ANTENNA>STACKING HARDWARE; ATV; DIRECTION FINDING>DIRECTION FINDING EQUIPMENT; FILTER>INTERMOD FILTER; KIT>AMATEUR RADIO KIT; RADIO REPAIR; TRANSVERTER;
Notes
Four kits currently available: a 6-meter SSB transverter, 2-meter foxhunting receiver, 24 cm FM TV transmitter, and a baseband processor for the TV transmitter. These kits are not intended for beginners. Owner: Manfred H. Zielinsky, VE3ZIE.

Google is your friend.  I'd write that in Croatian if I knew how ;>)

In military communications, the prosigns AR and K have opposite meanings.  AR means "End of communications", as in "I'm done, and I'm not listening for anything further".  

K means "over", as in "I'm listening; go ahead".

So to send "AR K" literally makes no sense.  It was fun to annoy the instructors in Radioman school by using it in a classroom environment, though.

Yep - that's a semiautomatic key, and the way you describe its operation is just how it should be working.

It makes the dots automatically by means of the horizontal pendulum.  Should make at least 10-15 dots before "running down".  Regulate the speed by means of the weights on the pendulum arm.  

Dashes?  You make them manually.

Try Googling on Vibroplex - you should be able to find step by step instructions for adjusting keys such as this.  If I had it in front of me I could probably do it in a minute or less, but it's rather harder to do it over a forum ;>)

The original question was whether this Palomar amplifier bore any sort of FCC certification label.  As a commercially-built external power amplifier operating below 144 MHz, it MUST be so certificated and must bear a label attesting to this.

It apparently doesn't, so it isn't.

No one's arguing (at least I'm not) that a licensed ham can take such a piece of ... junk and modify it so that it complies with the various technical aspects and requirements of Part 97 with complete impunity.  As described, however, this amplifier has not been so modified.

The Navy, alas, no longer has "Signalmen (SM)".  That job is now relegated to the Quartermasters (QM).  In the same vein, the Navy no longer has "Radiomen (RM)".  They are now "Information Systems Technicians (IT)".

N5JYK -

Maybe you should review Part 97 (97.315, specifically).  Commercially built external power  amplifiers that operate on HF certainly DO require FCC Certification.

http://www.w5yi.org/page.php?id=143&PHPSESSID=e31c4ab58be8ebe8596fc0f2bf6dc0a0

Many of the newer hams I've worked on CW have fine fists - and they're using straight keys.  At least the same number of them put too many dits in their "B"s and "6"s.  Having instructed code classes in the Navy, back when CW was a required mode (sigh), I can offer the explanation for this:  you have to be able to send well on a straight key before you can hope to send well on a semiautomatic key, or with an electronic keyer.

The difference in technique between straight key and any of the bugs or paddles is pretty much trivial.  It takes longer for most people to switch from bug to paddles than it does to switch from straight key to "other".

Kurt -

I also recommend the straight key until you're completely comfortable at between 15 and 20 WPM sending AND receiving.  Between now and then, visit ham stores and try out the various keyers.  Check them for features and decide on the one that fits YOU best, not something somebody else happens to like.

73 Pat K7KBN

I THOUGHT I remembered this from old Handbooks and ARRL Logs!  Look at the very last line of this collection of Q-signals.

http://home.zcu.cz/~tomes/qcodes.htm

You're going to need a keyer to go between the Vibroplex and the rig.  The TS-450 doesn't have a built-in keyer.  You can get a straight key, or a semi-automatic key (a "bug") to use with the 450...you can even connect one side of the Chrome Warrior and use it as a straight key - but I don't recommend that.

Bottom line:  you need a keyer.

Didn't mean to make two separate posts...but:

Use Google - it's your friend.  Just type G5RV in the search box and you get half a million or more hits.  The very first one for me was http://www.wb0w.com/g5rv/g5rv_antennas.htm

There you'll find all the dimensions you need for a TRUE G5RV.  There are dozens of variations of Varney's antenna out there, but unless they're 102 feet long and unless they meet the other specifications, they AREN'T G5RVs.

I don't know how much a commercial G5RV costs, but the component parts: insulators, wire, parallel line, coax connectors, etc. are relatively cheap.  Don't buy one - build it yourself!

Finally, remember that the G5RV is and always has been a 20 meter antenna that "works, sort of" on several other bands.  It won't work well on the WARC bands, and almost always requires a matching network (tuner) for bands other than 20 meters.

Whether you're running it through a PVC sleeve or not, the line is still passing through a metallic vent, which is a very bad idea.

The "ladder line goes through a vent", you say...a metallic vent?

Conduit generally serves as physical protection for electrical cables, not as RF shielding.  It might help to some degree, but you'd have to make sure that it was all properly bonded (which generally means "welded" at junction boxes and such.

But then you have the unshielded motors of the vacuum cleaners, microwave ovens, coffee grinders, etc.

Then you can worry about the computer control centers of the laundry machines, dishwasher, and so forth.

I'm slanting this reply to some of the same problems that we encounter on Navy ships with new equipment that hasn't been completely RFI tested before it's installed.