[AMRadio] Collins 300J-2 Broadcast Transmitter

Philip Leonard WVØT leolists at seidkr.com
Wed Aug 9 15:53:40 EDT 2006

Larry WA9VRH wrote:

> I have a scanned manual of the 300J however it is missing two pages of 
> the schematic.  I also have a scanned manual of the 21E-21M which is the 
> 5KW and 10KW version that uses the 300J as an exciter.
> I believe the schematic in the 21E-21M manual will give you enough 
> information to work on your 300J.  Please send me your address and I 
> will burn a CD with the manuals on it. Please let me know if you find a 
> complete schematic for the 300J. I would like to make mine complete.

Barry Mishkind of oldradio.com pointed me to a copy of the schematic on 
that website.  The URL is 


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