[AMRadio] Stock or modify? BC rig "value" -- Shorting Sticks


Rick Brashear rickbras at airmail.net
Thu Jun 1 15:37:40 EDT 2006


Speaking of "shorting sticks", I saw one a while back on the e-place, 
but didn't seriously bid on it.  Can one of you guys enlighten me as to 
the best material to use for the insulator and about how long to make it?

Thanks,
Rick



> Not only is a shorting stick not a bad idea, not using one is a  
> terrible idea.  As someone who has spent many hours working on high  
> power transmitters, I would NEVER touch anything inside a transmitter  
> without first touching it with a shorting stick.  When I do not have  
> a proper shorting stick available, I connect a grounded wire to a  
> well insulated screw driver and use that as a makeshift shorting  
> stick.  There is are no allowable exceptions to the shorting stick  
> rule, as far as I am concerned.
>
> Never rely on meters, pilot lamps or switch positions to tell you if  
> HV is present.  Switches can short and pilot lights can burn out.   
> I've seen at least one high power uplink amplifier where the  
> designers used the bleeder resistor as part of the meter multiplier  
> string.  An open bleeder meant zero HV on the meter but possibly a  
> full charge on the filter caps.  In that situation a shorting stick  
> could be the difference between life and death.  Never, ever, touch  
> anything inside of a high power transmitter without using a stick.   
> Period!
>
> Alan
> WA2DZL
>





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