[AMRadio] Re: 500 Transformer

[Geoff Edmonson]

John E. Coleman wrote:
> Here is a story that I'm sure some of you have heard but others may
> enjoy.
>   
> 	In 1994 a flood came to the Spring, Texas area, just north of
> Houston, and water was over the top of the building that our business
> was in.  In addition, the ham shack was a trailer that was near the
> business building and it washed away and busted up under the bridge of
> IH45 at Spring Creek.  The water didn't go down for several days.  Then
> there was the clean up and go hunting time.  I'll try to keep this
> short. 
[...]
	After a couple of hours with the rope and truck we had the thing
> out of the hole.  Sure enough it looked pretty wrecked and worthless.
> But I dragged it up and threw it aside for a while.  Packed full of mud,
> the ants made a home in it.  About another 6-8 months I decided to wash
> it out.  I had now decided that I would rebuild.  Two 813 sockets had to
> be replaced the modulation XFMR measured 2 k ohms from anywhere to
> anywhere.  So I said to my self that I would just rewind it.  I took it
> all apart and started cleaning in preparation for making measurements
> and turn counts.  After knocking it all down to the core and iron I put
> it up on a shelf for a while.  The storage place would reach 150 deg
> during the summer.  When I got back to the job at hand (about another 6
> - 8 months), I found that all the shorts had disappeared.  I reassembled
> the MOD - XFMR and gently started putting audio to it.  Well it is in
> use today with 4 - 813s running 2500 volts as modulators and pouring
> audio to a pair of 250ths @ 1600 - 2000 volts (depending on the draw
> bridge position).  I would have never believed it if it weren't my own.
> 
> BTW all the other XFMRS on the chassis are still doing there thing.

This doesn't mention that the whole rig was under water, and that the 
250TH's survived (if I recall correctly [IIRC]) without damage.


-- 
Regards,
-Geoff