XPost: alt.comp.os.windows-10, alt.home.repair, sci.electronics.design   
   From: clive@nowaytoday.co.uk   
      
   On 25/12/2022 22:55, micky wrote:   
   > In alt.home.repair, on Sun, 25 Dec 2022 16:56:38 -0500, Rachelle   
   > Walenski  wrote:   
   >   
   >> micky wrote:   
   >>>   
   >>> Technical qustion about wave valleys and troughs and if two radio   
   >>> playing the same station will be in phase wrt all frequencies, or if   
   >>> some will cancel out?   
   >>>   
   >>   
   >> Are the radios powered by the same 120v phase or on opposite legs (180   
   >> degree out-of-phase)?   
   >   
   > Yes, plugged into the same outlet.   
   >   
   > Both are traditional over-the-air AM-FM radios, usually using FM.  (One   
   > has bluetooth but it's not in use. )   
   >   
   > (To other poster, The radio with the bad speaker switch works well if   
   > the switch stops in the right spot, and sometimes it will stay that way   
   > for days. No access for contact cleaner at the moment.   
      
   I would expect two radios of the same make and model to be in phase, but   
   different radios will have different amplifier designs and speaker   
   arrangements which will likely give phase differences at different   
   frequencies.  Plus it is possible that the two loudspeakers are simply   
   connected in opposite polarity anyway.   
      
   --   
   Cheers   
   Clive   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)