[MRCA] Hammerlund BC779/ super pro 400 mods documentation

J Mcvey ac2eu at yahoo.com
Sat Apr 16 18:23:45 EDT 2022


 Here's a pic of the underside where many of the mods can be readily seen.

   On Saturday, April 16, 2022, 06:03:22 PM EDT, Charles Pfister <crp.wd8axb at comcast.net> wrote:  
 
   I might have the article in a scrapbook. I will look in a day or to; tonight if the rest of my evening goes well.   Charlie WD8AXB   
  On 04/16/2022 5:51 PM J Mcvey via MRCA <mrca at mailman.qth.net> wrote:   
   
    
   Yeah, that came up my search as well. I was hoping that someone on the list had knowledge of what the mods were or perhaps even done a few.   
    For all I know, he mods may be unique. It's kind of weird that the original owner included a ton of TM and copies of various pieces of it, but no documentation about all of the changes other than a sheet stating that the lower band selections had been converted. (which is the tip of the iceberg) 
   
      On Saturday, April 16, 2022, 03:48:40 PM EDT, Al Klase <ark at ar88.net> wrote:   
   
     Hi Jim,

I just discovered there is an online CQ archive:     But, they want 5 bucks and day/ 10 bucks a month to access anything but the TOC's.   See:  https://hamcall.net/cqcgi/?res=l&yr=1961&mo=04

 


73,
Al

   On 4/16/2022 3:12 PM, J Mcvey via MRCA wrote: 
  

       I have this hacked BC779 here which had the low langes 100-200 ans 200-400 modified to 160 meters and 10 meters respectively.  I don't know how well this works as I am in the midst of re-capping the radio before i fire it up.   
   However there are many other mods done to this radio, including the addition of an OA2 regulator and seemingly a lot of extra circuitry associated with it.   
   I understand there was an article in the April 1961 edition of CQ mag that described many of these  mods.   I want to compile  as much documentation about what was done , so I can decide whether to keep the mods or not.   It is also helpful to have the schematics for them to keep with the radio manual for future reference. There was no documentation from the previous owner. 
   
   Does anybody have a scan of the CQ article or any other info on BC779 mods?   
   Thanks, 
   Jim , AC2EU 
   
   
   
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Al Klase - N3FRQ
Jersey City, NJ
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