[Milsurplus] AN/APR-4Y receiver MF wanted

[COURYHOUSE at aol.com]

Ah Ha! then there is a  the  RDO ?   by scott  radio labs that used the 
plugins and should you loose the ships anchor   this  would substitute!    VERY 
HEAVY!  lovely though  has meters all over the front of it  etc...  We need 
a  clean  one  nice  for  display we have a  rough one 
 
John  are  you able to get much sensitivity  from the   4 gig  plug-in?
 
Ed Sharpe Archviist for SMECC
 _www.smecc.org_ (http://www.smecc.org)  
 
 
In a message dated 9/14/2016 3:02:05 P.M. US Mountain Standard Time,  
jmfranke at cox.net writes:

Some of the plug-ins for the earliest APR-1, also known as an ARC-1 and an  
Army BC designation before the famous VHF transceiver was produced are not  
directly compatible with the APR-1 or APR-4. The problem was the power pin 
for  the drive motor was not used or present in the earliest receivers. A 
third  hole had to be drilled in the back of the plug-in to allow clearance 
for the  pin. This is all covered in the SPR-1/APR-1 manual. By the way, the 
SPR-1 was  a shipboard version of the APR-1 which was identical to the APR-1 
except for  the use of steel panels instead of aluminum. I have one SPR-1 
and about a  dozen APR-1 and APR-4 receivers along with dozens of tuning units 
going up to  4 GHz. 

John  WA4WDL 


On September 14, 2016 at 3:37 PM Ed Sharpe Archivist  for SMECC via 
Milsurplus <milsurplus at mailman.qth.net> wrote: 

Jeff- what is the difference between  apr-4 and apr-4y? 
We have a ECM  display here at  SMECC Museum 
of  Jammers and  Receivers.  
( and  yea always  looking for more  too and  all the manuals etc) 

for the APR-4 you can use all the   single plus ins  or  there is a 
wonder plug in of later vintage what is MULTI-BAND ( many of  these were 
made 
quite late compared to the  old  single band  plug ins.  

I have  found all the plugins to interchange between the APR-1 and  APR4 

Ed #  archivist at  SMECC Museum  _www.smecc.org_ (http://www.smecc.org/)   

 
In a message dated 9/14/2016 12:04:58 P.M. US Mountain Standard Time,  
milsurplus at mailman.qth.net writes: 

Hello All! 

Been looking for an AN/APR-4Y receiver mainframe to complete a setup.  
Anyone have one they are tired of? 

Also still looking for WWII jammer stuff, have a lot of it, but you  might 
have a better one for my collection. Working on getting permanent  space 
here at the college for a small museum of WWII Electrotechnology.  

Thanks & 73 
Jeff Kruth 
WA3ZKR 


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