Ah yes those tractor radios were something else!  1 or 2 6l6 in the
output?  I guess they did move to all transistor but that was after I
left the farm.  


 

-----

BRETT WINCHESTER

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208-639-8386

###

 

 


-----Original Message-----
From: For blind ham radio operators
[mailto:[log in to unmask]] On Behalf Of Butch Bussen
Sent: Tuesday, January 30, 2007 5:12 PM
To: [log in to unmask]
Subject: Re: kind of on topic: radio, not ham

The rf transistor would be my guess.  Doesn't take much static to wipe
that out.  The antenna doesn't have to be a whip or even soli, just a
piece of wire with a clip on it.  If attaching some sort of wire doesn't
do the trick, I'd suspect something in the front end of the radio.
  Static can do strange stuff.  I use to work in a radio shop, and in
those days we worked on tractor radios.  Now these were on tractors
without a cab, and most were boxes with a large speaker, plenty of
audio, and a whip antenna.  We use to protect these sometimes with fast
switching diodes. 
Also, particularly on desiel tractors, sometimes the noise was so bad
when the tractor was moving, the radio was almost useless.  This was
caused by charged particles from the exhaust striking the antenna.
Often we could cure this by just slipping a small rubber hose or some
other insulator over the whip.

73s
Butch Bussen
wa0vjr