[ARC5] Distribution of ARC-5 Audio

[Jay Coward]

Or  front seat in a WACO (similar to Stearman PT-17).
Jay
 
 
-----Original Message-----
From: K5MYJ <macklinbob at gmail.com>
To: Todd, KA1KAQ <ka1kaq at gmail.com>; Michael Hanz <aaf-radio-1 at aafradio.org>
Cc: ARC-5 Mail List <arc5 at mailman.qth.net>
Sent: Sun, Apr 24, 2016 10:14 am
Subject: Re: [ARC5] Distribution of ARC-5 Audio



Try flying in the waist compartment of a B-25!
 
Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"
  
----- Original Message ----- 
  
From:   Todd, KA1KAQ   
  
To: Michael Hanz 
  
Cc: ARC-5 Mail List 
  
Sent: Sunday, April 24, 2016 6:28 AM
  
Subject: Re: [ARC5] Distribution of ARC-5   Audio
  


  
  
  
And at a more basic level, receiver choice can be controlled by where you   plug in your headphones on either the receiver rack or control box, though the   3 receiver control box only appears to have outputs for two of the receivers.   


Having been fortunate enough to have flown in a B-17, I still   chuckle at the thought of external speakers. (o: 


~ Todd,    KA1KAQ/4

  

  
On Sun, Apr 24, 2016 at 8:26 AM, Michael Hanz <aaf-radio-1 at aafradio.org> wrote:
  
    
I forgot to mention that if you were     interested in only the ARC-5 receivers, see the AN/AIC-4 interphone     system diagrams at http://aafradio.org/docs/AIC-4.html - things were a lot     simpler then.    
    


    
On 4/24/2016 8:13 AM, Michael Hanz wrote:

    
On 4/23/2016 7:33 PM, Cliff Miller wrote:
      
        
        
        
        
In an aircraft with multiple receivers, how was the audio output         controlled and distributed?  Were the audio outputs bussed together         or switched somehow so an individual user would only hear one         receiver?




There is a very       large number of answers to your question - as posed.  First you have       to define what you mean by "aircraft" - size, number of crewmen, primary       mission, etc.  Then you have to define "individual user" in terms of       their role in the aircraft.  The audio distribution in a military       aircraft (normally called the interphone system) followed various paths       over the years, growing exponentially more complex by the end of WWII       because of the specialization of aircraft missions into less well known       groups like countermeasures and signals intelligence.  One place to       start is at http://aafradio.org/flightdeck/Interphone_systems.html       where you can see the trends from the earliest RL-** Navy and USAAC RC-**       interphones to where it all was going by the last system on the page (the       AN/AIC-5).  You'll see two different control boxes associated with       that set, with different degrees of receiver selection.  

The       AN/AIC-5 gradually evolved through the 1950s - for example, the AN/AIC-7       was essentially an AIC-5 with high intensity loudspeakers added for       internal and external use.  Its manual states, "The pilot, copilot,       radio operator, and navigator are each provided with a master control unit       that permits selecting any one or combination of eight radio receiver       outputs as desired."  The next generation appeared in the AN/AIC-10,       which became perhaps one of the most prolific systems in the       inventory.  It bridged the gap between tubes and transistors - I have       one each of a couple of LS-184/AIC-10 loudspeakers with internal       amplifiers that represent that shift from tubes to solid       state.

73,
Mike      KC4TOS





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