Mystery Control Box System, please take a look

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abwdvm
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Mystery Control Box System, please take a look

Post by abwdvm » Sat Jul 18, 2015 10:44 am

In our Emergency Broadcast Safe room...
http://www.ksstradio.com/wp-content/upl ... d-boc7.jpg

is connected to this in the main rack

http://www.ksstradio.com/wp-content/upl ... C_0878.jpg
here the back
http://www.ksstradio.com/wp-content/upl ... C_0893.jpg

This is in the main studio
http://www.ksstradio.com/wp-content/upl ... e-boc1.jpg

Portions of this system still work....

For example the dead air alarm illuminates 'Audio Warn' light in studio
technician at an 1000w AM station in Texas

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Deep Thought
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Re: Mystery Control Box System, please take a look

Post by Deep Thought » Sat Jul 18, 2015 10:51 am

That's a great example of an old-school home-brew transmitter monitoring and control extension. Considering that it is in the "safe room" I would imagine it was designed and built to allow an on-site transmitter to be controlled without having to wander out in the vast nuclear radiation field. 8)

Did you find any docs for it (yeah I know...had to ask anyway)?
Mark Mueller • Mueller Broadcast Design • La Grange, IL • http://www.muellerbroadcastdesign.com

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abwdvm
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Re: Mystery Control Box System, please take a look

Post by abwdvm » Sat Jul 18, 2015 10:53 am

All the docs found... are pictured. Some pinouts, and color coding info.
technician at an 1000w AM station in Texas


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Deep Thought
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Re: Mystery Control Box System, please take a look

Post by Deep Thought » Sat Jul 18, 2015 11:03 am

If you trace it all out you'll probably find that it connects to the modulation monitor, an old tube transmitter (or where one used to be), etc. It says "EBS" which means that part is probably long gone. It's a fairly nicely built system considering its age...from back when engineers actually had time to do stuff like that.
Mark Mueller • Mueller Broadcast Design • La Grange, IL • http://www.muellerbroadcastdesign.com

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