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Trusted Site for Used AM Transmitters?

grich said:
If I suggest the owner sell one of these beasts, which one goes? I just started working for this client a few months ago, and I haven't had the guts to fire up the Raytheon yet.

Harris. But good luck getting rid of it. you might be able to give it away if you really want it out of the way. Fire up the Raytheon, it just might surprise you.
 
The Raytheon RA-1000 was built like a battleship.. Very good sounding audio and very reliable rig. Commercial Raio stil supports manyof the parts for that rig. Could modulate lots of positive peaks in excess of 135%
 
The Power Rock 5kw did have one stange bug. It was rumored that a Crystal Gales song would dump the rig off the air, and it was finally was discovered by Jack Sellmeyer that the problem was in the Emiac tube internal support.
I heard almost 1000 Power Rock rigs were sold by Collins and Continental. When introduced, the Power Rock stopped the sales of most of the Harris MW-5 rigs that have horrible IM distortion, and some caught fire!
 
That was the Famous Fabulous Crystal Gayle Syndrome. If you had a tube of a given build in one side of it, "Don't It Make My Brown Eyes Blue" would trip it off on overload, sometimes open a breaker. According to rumor, Jack abnd The Wiz finalkly sawed one of the tubes open and discovered the internal structure had been redesigned by Eimac without it being mentioned.

Since he sometimes lurks here, maybe he will give us the complete story.
 
WVJS in Owensboro KY added a translator and cut power from 5 kw to 1kw. Wonder if they replaced the Rock? I have to say through this century it was maintained well enough to eat off of.
 
littlejohn said:
That was the Famous Fabulous Crystal Gayle Syndrome. If you had a tube of a given build in one side of it, "Don't It Make My Brown Eyes Blue" would trip it off on overload, sometimes open a breaker. According to rumor, Jack abnd The Wiz finalkly sawed one of the tubes open and discovered the internal structure had been redesigned by Eimac without it being mentioned.

Since he sometimes lurks here, maybe he will give us the complete story.

I'll bite, what part of the song would trip the overload?
 
Bengalsfan said:
littlejohn said:
That was the Famous Fabulous Crystal Gayle Syndrome. If you had a tube of a given build in one side of it, "Don't It Make My Brown Eyes Blue" would trip it off on overload, sometimes open a breaker. According to rumor, Jack abnd The Wiz finalkly sawed one of the tubes open and discovered the internal structure had been redesigned by Eimac without it being mentioned.

Since he sometimes lurks here, maybe he will give us the complete story.

I'll bite, what part of the song would trip the overload?

I love anomaly stories about songs that make equipment go flooey.
Didn't Minnie Riperton's "Lovin You" make voltage regulators do something ugly?

I had not experienced any personally until a certain song caused Automation to dump every time at 15 sec.
I redubbed, filtered, eqed, and tried mutliple machines and still couldn't play.
Couldn't see anything "wrong" with the waveform and had tried snipping out many little bits to no success.

Never had seen that before. Finally got it down to mono file that ran but sounded miserable.
Today redubbed and faded right channel signal into left and it seems to work.
 
Collins-Rockwell-Continental Power Rock were all excellent transmitters as were the Gates-Harris MW -5 series though there were a couple of problems with the 70KHZ PDM filters windings opening. I discovered by accident the reason why there were some MW-5 fires including one WEEI Boston and a partial meltdown at WJAR Providence.
At WHIL-WWEL-WXKS I caught the plastic coated cable for the grounding stick being sucked across the high side of the three phase AC power transformer by the blower vacuum in my MW-5A while I had the other side back door open with the interlock defeated. Harris was in a mess with CBS across the street after they had to remove the WEEI MW-5 ash remains with a shovel. The CBS transmitter business for all markets suddenly went over to Continental.
After leaking that info to Bob Hallenbeck (a friend who at the time was beside himself) over a nice Harris dinner. An MW-5 and MW-5A modification appeared and was sent to all stations that had bought one within a month.
There are still some of both on the air and they still sound great when properly maintained and processed.
 
ChiefEngineer said:
Paoli Indiana had an old Raytheon maybe Bob can comment if it still runs.
Sold it a couple years ago...now if only the MW1 would follow in it's footsteps.
 
More expensive to maintain a DA than an FM translator.
 
Yeah. And they probably can have about 3 or 4 times the audience after getting on the translator too, even with less coverage area. Sadly, the AM band really needs to move to the 2-6 TV band as a secondary sooner than later.
 
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