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Some of the wild and crazy things we have done to get back on the air.

Re: Some of the wild and crazy things we have done to get back on the air.

Greg got me remembering...WKID, Vevay,IN 1988...I was out for a drive in the boonies & came across downtown Vevay,IN. Saw a studio & a 95.9 frequency logo but nothing on the air. Looked into the window...typewriters being typed on and a console with VU meters in motion. Stopped in and was told the station had been off for a few day & they were waiting for an engineer from Cincinnati (1 hour away) to get there. I introduced myself and the GM took me up the hill. What happened is that the house that the transmitter was in was in the process of being demolished. They were under orders to move the transmitter to a new building and hadn't started on that. So the second floor of the house was removed as were the adjacent rooms. All that was left was the room the transmitter was in and it had rained hard for days. When the back cover of the PA cavity was removed, water literally poured out. I forget what kind of transmitter it was, but I've never seen another one. It used an 8877 grounded grid PA. I sent the GM back into town to gather hair dryers and started in on it. After being satisfied that the PA was dry, I got brave & applied high voltage. No sparks from the PA, but plenty from the rectifiers...more hair dryer time. Turned it back on and this time sparks emanated from the high voltage transformer. That part took a LOT of hair drying, but after 3 hours of drying time (amazingly, no hair dryers were harmed in the process), it came back on. I later read a letter to the editor in Radio World (or it's predecessor) from Eldon Durand in PeeWee Valley,KY detailing the lack of maintenance at the site and how they called him when this happened and he wisely declined as they owed him money. I never did get paid for that episode, but I was an active ham at the time and was happy to accept a used 8877 for the bill. Eldon wondered in his letter who the sucker was that ended up saving their hide. 23 years later, I confess...
 
Re: Some of the wild and crazy things we have done to get back on the air.

BobOnTheJob said:
Greg got me remembering...WKID, Vevay,IN 1988...I was out for a drive in the boonies & came across downtown Vevay,IN. Saw a studio & a 95.9 frequency logo but nothing on the air. Looked into the window...typewriters being typed on and a console with VU meters in motion. Stopped in and was told the station had been off for a few day & they were waiting for an engineer from Cincinnati (1 hour away) to get there. I introduced myself and the GM took me up the hill. What happened is that the house that the transmitter was in was in the process of being demolished. They were under orders to move the transmitter to a new building and hadn't started on that. So the second floor of the house was removed as were the adjacent rooms. All that was left was the room the transmitter was in and it had rained hard for days. When the back cover of the PA cavity was removed, water literally poured out. I forget what kind of transmitter it was, but I've never seen another one. It used an 8877 grounded grid PA. I sent the GM back into town to gather hair dryers and started in on it. After being satisfied that the PA was dry, I got brave & applied high voltage. No sparks from the PA, but plenty from the rectifiers...more hair dryer time. Turned it back on and this time sparks emanated from the high voltage transformer. That part took a LOT of hair drying, but after 3 hours of drying time (amazingly, no hair dryers were harmed in the process), it came back on. I later read a letter to the editor in Radio World (or it's predecessor) from Eldon Durand in PeeWee Valley,KY detailing the lack of maintenance at the site and how they called him when this happened and he wisely declined as they owed him money. I never did get paid for that episode, but I was an active ham at the time and was happy to accept a used 8877 for the bill. Eldon wondered in his letter who the sucker was that ended up saving their hide. 23 years later, I confess...
Thinking back, it may have been an ITA transmitter.
 
Re: Some of the wild and crazy things we have done to get back on the air.

Kmagrill said:
rew said:
Hey grich, I still have a FM2.5H I have to keep running. Not much trouble with it. What did he use the Pepsi can for? Just incase I ever need to know.

I'm guessing anode strap. I burned up a pair of them on an FM20H3 once because I got the hose clamp slightly crooked during maintenance. Opened up the failed transmitter to a cascade of little aluminum ball bearings where the anode straps had been.

Yup...anode strap. Of course, today's pop cans would vaporize like a fusible link. ;D
 
Re: Some of the wild and crazy things we have done to get back on the air.

Back in the early 80s, my station (WGTO, Cypress Gardens, Florida) had an old RCA 10kw AM transmitter which they operated at a power level of 1kw at night.
The old BTA10H transmitter blew an audio interstage transformer one evening. It was impossible to operate the transmitter without the transformer.
My only option was to attempt to operate the daytime 50kw transmitter at a power level of 1kw into the night pattern.
The 50kw transmitter, a Harris MW50, would not operate at a a power level less than about 8kw.
In this emergency situation, I put the MW50 on low power and adjusted the output loading of the transmitter to produce about 1kw.
Since the nighttime pattern wasn't much different than the daytime pattern, I operated the transmitter into the daytime array.
At power change the following morning, I only needed to adjust the transmitter loading and switch to high power.
We operated like that for two or three days until a new nighttime transmitter arrived.
Not completely legal but much better than being off the air at night.
 
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