[AMRadio] Globe King

[russ dworakowski]

Charles,  I have a 500B,  that came to me as basket case.  I  ended up with 
all new iron.  Hopefully,  yours was stored well,  and not ina damp 
location.  If so,  it would be good to just fire it up  and let it dry out.  
Its amazing how much moisture  those  old open transformers
soak up.    When all said  and done,my GK 500B,  had changes in the 
modulator-  A higher voltage on the plate transformer- 1500v.  I put neg. 5 
volts bias  on the 811s.  In the speech amp,  I did not change anything.  I 
used a D104 mic and I got real good audio rpts.  I also solid stated  the 
modulator  power supply-  the 816s  kept flashing over,so  bye bye.  Also 
switched to 3B28s in the RF power supply.
Have fun!  Russ


>From: Charles Ring W3NU <charlesr at infonline.net>
>Reply-To: amradio at mailman.qth.net
>To: amradio at mailman.qth.net
>Subject: [AMRadio] Globe King
>Date: Wed, 18 Sep 2002 12:26:36 -0400
>
>The time has come to revive my Globe King 500A, which is in generally
>good condition and mostly unmodified. Where can I find info on it, such
>as how to eliminate the "couplettes" in the modulator, and anything else
>I need to know.
>
>I don't have any ER issues but i do have much or most of AM
>Press/Exchange 1984-92.
>
>73 de W3NU
>
>
>
>
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