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  #11  
Old 02-26-2019, 01:03 PM
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John ED Renstrom John ED Renstrom is offline
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my only take is that the aftermarket builder did not put in a radio unless requested.then is would be what ever was requested and farmed out to a licensed installer. they would normally be installed after delivery to cover what ever needs the new owners had. normally removed when passed on. to put in the new rig. mounts were with elongated holes for universal application. but marks might be useful as all were a little different. the base loading coil would be the range of the radio with the whip trimmed to the exact frequency of the radio. at a 1/4 wave length. vary few commercial radios had mutable Chanel. most used only the one licensed. hence the number of them installed and the number of holes in the roof. most low bands used whips at around 100 inches. the stoner would most likely have only one ground plain cast in the roof. so a lot of cab mounts on mutable radios in the higher bands.
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Old 02-26-2019, 06:06 PM
Walter Suiter Walter Suiter is offline
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Looks like the longer whip was cut to 123.200 and 123.275 which MD used at Edwards.
http://cascanning.tripod.com/califor...y/edwards.html
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  #13  
Old 02-28-2019, 04:00 PM
Nicholas Studer Nicholas Studer is offline
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Quote:
Originally Posted by Walter Suiter View Post
All right, fess up right now, how did you get the picture of my 211.
That spring setup must have launched a few handlights.

You tell the truth and I'll look around for the clamp on I have stashed someplace. From memory clamp ons fit the fat battery that was almost a cube. Clamp on being different from the post mount Ray-O-Vac produced millions of in a similar size to Big Beam 211.

Re the long antenna, measurement needs to be of just the whip. I did some chart reading and 21" of whip puts the radio around 120mhz which is oddly the low end of AM aircraft frequencies.
That photo of that ad was on eBay maybe a year or so ago.

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Originally Posted by Walter Suiter View Post
Looks like the longer whip was cut to 123.200 and 123.275 which MD used at Edwards.
http://cascanning.tripod.com/califor...y/edwards.html
Great info! Very likely what it was.
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Old 08-04-2019, 12:03 AM
Nicholas Studer Nicholas Studer is offline
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I think we're getting somewhere...

Holes matched for the radio base itself. However, holes don't perfectly line up for the control head/speaker brackets. The brackets are holding with just a single screw and not drilling new holes though. I'm unsure what the deal is - it was not MASTR Professional or the earlier Transistorized Progress Line as I tried to get those items to fit and couldn't due to size. It was not a Motorola product originally, best as I can tell. One clue to this mystery is that the hang-up clip on the side there (pictured) is a GE product. It's possible some holes in there went to something else entirely unrelated to the radio - like hand-lights as mentioned. It's possible also that M-D had a special radio setup of some kind from GE or otherwise - after all, there are two antennas with evidence of a previous third. Presuming that the two antennas were in service simultaneously, multiple antennas isn't something the standard products could deal with back then. Astute observers will also note it's a single-channel MASTR Royal Executive control head. But, how it is right now makes most sense to me after lots of research and most of the MASTR Professional/Executive stuff seemingly vaporware.

Next step is enlisting the help of the local Harris radio shop to see if I have it hooked up right before connecting power...
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  #15  
Old 08-04-2019, 02:16 AM
Walter Suiter Walter Suiter is offline
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Couple things come to mind, first being that transmitter ain't legal to light up any more since narrow banding. Somebody dimes you out it's $750 unless you're licensed on that frequency.

Going on the presumption the radio is for display only, why not just connect the control head and leave the drawer completely depowered? That would definitely cut power consumption, and should you get lucky enough to meet a Field Engineer from the Federal Cookie Company, it will be very easy to prove you're legal.

Second option, if you insist on powering the drawer, you can unplug the transmitter strip inside the drawer to prove innocence.

I don't have any GE books left, but there are a bunch of old guys from RG Harris who live and breathe these radios. Naturally they have a web site.
http://www.radioinfoboard.com/viewfo...d9cb917b923fe1

When I glanced it looks like there are a couple who still remember the GEs many in this area are still trying to forget.

Hood luck.
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Old 08-04-2019, 11:33 AM
Nicholas Studer Nicholas Studer is offline
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Thanks. Like I did for my 1963 Pinner-Chrysler, it's nice to be able to turn the radio switch and the power light glows. Regardless, I want to have someone with some current install experience double-check my work before applying current to it.
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Old 10-26-2019, 12:10 AM
Nicholas Studer Nicholas Studer is offline
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Very kindly, a senior radio tech for one of the nearby municipalities was willing to help me out with powering up the set! On a side note - a clearly MASTR Executive control head and speaker turned up on eBay. Turns out the microphone is the main difference - with it being black compared to the grayish color otherwise more commonly found. That fits better with the mic pictured in the manual. I guess the gray ones were only for GE MASTR Professional products?

This radio powers up and squeeze the PTT - the GE logo lights up red. Pretty neat!
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