[Milsurplus] No GO-9 On Display. Likely GO-2.

Tue Jul 18 13:33:56 EDT 2017

Question -  Was the LM-10  Freq. Meter used more  for the  receiver or  the 
transmitter?
Thanks -  Ed@  _www.smecc.org_ (http://www.smecc.org)  

In a message dated 7/18/2017 8:39:08 A.M. US Mountain Standard Time,  
wf2u at ws19ops.com writes:

Mike and all,

I didn't give more than a cursory look at that transmitter in the cutaway  
display (I looked at it on my "smart"phone screen as I wasn't by my 
computer)  and didn't notice the difference. 

I know that the GO-9 is paired with the double setup (including the  double 
RU-19 junction box) of RU-19's, because it states so and is illustrated  in 
clear photos in the PBY-5A flight manual, revised 20 January 1945 I'm  
looking at. The radio equipment listed and illustrated, not to mention  
components such as junction and control boxes, is as follows: command  
(intersquadron as the manual says) transmitter ATB,  command   receivers  2x ARB. Liaison 
transmitter GO-9, liaison receivers 2x RU-19.  The manual also shows and 
lists an LM-10 frequency meter. The manual also  notes that the ZA equipment 
was deleted from the equipment installation,   although it shows on the 
photos.

73, Meir WF2U/4

Sent from _BlueMail_ (http://www.bluemail.me/r?b=10066)   
On Jul 17, 2017, at 8:36 PM, Mike Morrow <kk5f at earthlink.net>  wrote:  
Meir wrote:

 You can see the radio compartment of a PBY-5 aircraft with the GO-9
 and a pair of RU-19 receivers here:
   http://tlbigley.com/Cutaway%20PBY/  

Meir,

The photos in that cutaway have intrigued me for several years.

The GO-series transmitter pictured is definitely NOT a GO-9...there's not a 
bit of doubt about that.  So...wbat is it???

There were only four makers of the GO-series:

Hygrade Sylvania
GO      1933

Western Electric
GO-1    1934
GO-2    1935

Westinghouse Electric
GO-3    1937
GO-7    1940
GO-8    1940
GO-9    1940
GO-9a   1944

General Electric
GO-4    1938
GO-5    1939
GO-6    1939

If the photos are enlarged and studied, the largest lettering is the 
manufacturer's name, which appears to be the stylized "Western Electric".  The 
cutaway likely has a 1935 GO-2 installed on a 1943 PBY-5B.

That's not so unlikely...the website explains that the aircraft was damaged 
in 1944 and subsequently turned into a non-flying training exhibit.  It 
would be very possible that older gear would wind up replacing a set that was 
currently needed for flying service.  The preservation of what is likely the 
only surviving GO-2 is a happy consequence.

For similar reasons, it is uncertain that the receiver system is actually 
the expected RU-19 system.  There would only be ONE RU-19 system with its TWO 
CW-46048D receivers.  Regardless, the liaison-service receivers RU-4 (1935) 
through RU-19 (1941) are visually and electrically essentially identical.

I've been wanting to make a trip to see this cutaway and try to verify what 
is really installed.  One thing is certain...there is no GO-9 there.  :-)

Mike / KK5F

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