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 Post subject: Re: Multi-Elmac A54-H transmitter
PostPosted: Nov Fri 16, 2018 3:04 pm 
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Joined: Jul Thu 30, 2009 3:32 pm
Posts: 37
Photos (This site is a bit quirky!)



I was born and raised less than 1 mile from the old Elmac shop on 10 Mile Road in neighboring Hazel Park Michigan.
When the A-54 was being built, I was but 0ne year old, however. Very early on in my ham radio career at age 10 I finally first met the little A-54 and fell in love.
Got to know Mr. George Goldstone as well as several other pivotal people from the early days at "Multi Products" (Elmac).
Over the decades I have rescued literally dozens of Elmac and Multi Elmac radios just for the sheer joy of seeing and hearing them back on the air, where they belong.

A few years ago I picked up the earliest A-54H that I have yet seen at, fittingly the Hazel Park Hamfest. It is Serial Number 63. I immediately built a nice little power supply to complement the new treasure.

Worth noting, the first few A-54 came with VFO dials and meter faces that were printed with ink on paper and glued in place.

If I get the chance, I will try to scan a VFO face and post it here.


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 Post subject: Re: Multi-Elmac A54-H transmitter
PostPosted: Nov Fri 16, 2018 4:08 pm 
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Joined: Apr Thu 12, 2007 3:24 am
Posts: 1991
Location: Milwaukee,WI
Nice setup. I wish my faceplate was that clean. What discolored mine doesn't seem to want to wash off. I'm assuming the cans on your power supply are 2 transformers and a choke. Did you use a separate filament transformer?

Because of the 800 pixel limit on the forums, if you get a scan of the dial it would be best if you have a file sharing site to link to or I could PM you my email address so I could have the high quality scan.


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 Post subject: Re: Multi-Elmac A54-H transmitter
PostPosted: Nov Fri 16, 2018 4:32 pm 
Member

Joined: Jul Thu 30, 2009 3:32 pm
Posts: 37
Hello,

I will let you know when I have the file and we can arrange transfer.
The high voltage is handled by the Triad P-7A there is also a Triad F-18A filament transformer on the topside. Hidden by
the P-7A is the HV choke from a Johnson Ranger . Below the chassis deck is a Radio Shack 25 vct transformer to handle the PTT controls and T/R relay after being rectified and filtered by the diodes and cap that are mounted on the home brew turret terminal , fiberglass tagboard right next to the transformer.


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 Post subject: Re: Multi-Elmac A54-H transmitter
PostPosted: Nov Mon 26, 2018 9:30 pm 
Member

Joined: Apr Thu 12, 2007 3:24 am
Posts: 1991
Location: Milwaukee,WI
Just a reminder about the scan of the dial in case you forgot.


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 Post subject: Re: Multi-Elmac A54-H transmitter
PostPosted: Feb Fri 22, 2019 11:12 pm 
Member

Joined: Apr Thu 12, 2007 3:24 am
Posts: 1991
Location: Milwaukee,WI
I couldn't wait any longer for a scan to show up here and still couldn't find a good pic on the web. So I ended up having to start with the best I could find which was a fuzzy 290 x 190 jpg pic with all of the usual jpg artifacts around everything. A couple of hours later, this is what I ended up with. Not fantastic put a test print looked decent enough. Much better than whats left of the dial on the radio now. See first page of thread. I converted from color to greyscale. Erased the dial pointer. Erased and replaced all the numbering. Cleaned up around the dial circles and markings. I went greyscale because I have a laser printer. I also made a version with the original yellowish color dial backround. If I have access to a good color printer I'll give that a try too.


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 Post subject: Re: Multi-Elmac A54-H transmitter
PostPosted: Jun Wed 12, 2019 1:10 am 
Member

Joined: Apr Thu 12, 2007 3:24 am
Posts: 1991
Location: Milwaukee,WI
I finally got back to working on the radio. I haven't printed out the new dial yet because I met a guy at an estate sale who said he could get a good scan of his dial for me to work from. I also don't have the dial lens made yet. Instead of a lens over the meter too I might use spacers to bring the meter closer to flush with the trim ring. I just had to assemble it back together so I could see the results of the strip/paint/polish. I don't have to take much off again when I get the new dial face. If you look closely you can see a difference in the before and after pics. :lol:
Not too bad for a $5 radio that came with all the tubes.


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 Post subject: Re: Multi-Elmac A54-H transmitter
PostPosted: Jun Wed 12, 2019 3:42 am 
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Joined: Oct Sun 15, 2006 12:57 pm
Posts: 6422
Location: Liberty, Missouri
Congratulations, VERY well done.

I had occasion to look at an Elmac products recently and was impressed with the mechanical design and the workmanship.

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Pics, Bold & underlined text, are usually links.

https://mikeharrison.smugmug.com/

Mike


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