Thanks Peter. I really appreciate the info. I am not able to calibrate
all of the frequencies, so I guess I'll need to investigate it further.
Thanks for the name and link.
Rick
Peter Wittenberg wrote:
Rick, it sounds like the PTO is no longer tracking as it should. These are
very old
I rescued a 300J-2 this past weekend from a small station in Kansas.
The engineer only had a partial manual for it. Does anyone happen to
have a copy? I am missing part of chapter 6 (illustrations) and all of
chapter 7 (diagrams). Chapter seven has the schematics.
When will these things pop up in CA?! AW!
Dino - K6RIX
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Original Message
Subject: [AMRadio] Collins 300J-2 Broadcast Transmitter
From: Philip Leonard WVØT [EMAIL PROTECTED]
Date: Tue, August 08, 2006 12:03 pm
To: AMRadio@mailman.qth.net
I
Hi Philip,
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
Ric: NO the PTO runout is not normal. I own 2 R-388 and they are roughl the
same as yours. I have also owned R-388's when they were brand new. In new
condition, even at the band edges, the correction was only a Kc or 2. This
means we have work to do to correct the runout. I am too lazy so I just
Hi Charlie... thanks for the info. I've received several replies saying
basically the same thing you have. It seems there is an end adjustment
that can be made to the PTO to correct this fairly common problem. I
plan to dive into this one soon and get my feet wet. This is my first
388, so
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