[R-390] TM 11-4000

[Cecil Acuff]

Hey Folks,

I looked at the block diagrams and the schematics in the TM 11-4000 this 
morning and the R-390A is definitely the test subject in the manual but is 
never mentioned as such as Barry H. has correctly pointed out.

The manual is a pretty general work aimed at the troubleshooting and repair 
of tube Receivers, AM transmitters and FM transmitters.  I assume we are 
talking about only including the parts pertaining to Receivers here.

Maybe getting the entire April 1958 TM 11-4000 on CD would be a nice thing 
to have one day....not sure how many of these are floating around....just 
like the others someone mentioned.  I've never seen those!

Cecil....
----- Original Message ----- 
From: "Barry Hauser" <barry at hausernet.com>
To: <R390rcvr at aol.com>; <r-390 at mailman.qth.net>
Sent: Friday, December 16, 2005 8:27 AM
Subject: Re: [R-390] TM 11-4000


> Hi Randy
>
> I have a copy too, but better you than me, heh heh.
>
> Some considerations:
>
> 1.  It's better to scan and OCR the section.  If you just scan and leave 
> it as as bit image/graphic, it will be much larger in terms of file size, 
> and you'll probably have to back off on the resolution, resulting in 
> grainy-ness.  If the text is OCR'ed, the photos and small line drawings 
> can be scanned an incorporated in place in a higher resolution.  Also, 
> true text means that the digitized result can be searched for word and 
> part references.
>
> 2.  Your scanning software may already contain a variant of OCR software. 
> They typically have to be "trained" on samples to recognize the type face 
> accurately.  Even then, it all has to be proofed word by word and edited. 
> There's no such thing as 100% with OCR'ing this stuff.  Also, I think the 
> manual is set up as double column.
>
> 3.  That said, it might be better to restroke the thing.
>
> 4.  The TM-4000 section should be reviewed by some who know the R-390A 
> like the back of their hands.  Because it's a training piece, the authors 
> may have taken liberties with some of it and may vary from the realities. 
> Again, that manual doesn't even mention "R-390A" anywhere, which makes me 
> somewhat suspicious of that possibility.
>
> 5.  One approach is to divvy up the section between three or four 
> volunteers to type it up.  If those guys are also familiar with the 
> R-390A, they may be able to detect any anomalies or variances as they do 
> it.
>
> Barry
> (the been-there-done-that guy)
>
>
>
> ----- Original Message ----- 
> From: <R390rcvr at aol.com>
> To: <r-390 at mailman.qth.net>
> Sent: Friday, December 16, 2005 8:43 AM
> Subject: [R-390] TM 11-4000
>
>
>> Good morning all:
>>
>> I will take up the cause of scanning in the TM 11-4000. I have a good
>> original, which I will unbind to scan in the receiver portion of it. I 
>> don't  think
>> I can handle the big schematics, and haven't checked them out carefully
>> enough to see if they are different from the other manual schematics.
>>
>> I do think it will be a very handy troubleshooting aid.
>>
>> Randy
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