[GreenKeys] OT - rotary dial telephone specs

Richard Schumann richardschumann at comcast.net
Mon Jun 3 15:38:33 EDT 2013


Now that I remember correctly, it wasn't a candlestick phone I had...it was just a 60s handset....

Richard kn7sfz

  ----- Original Message ----- 
  From: Richard Schumann 
  To: aaa-greenkeys 
  Sent: Monday, June 03, 2013 12:35 PM
  Subject: Re: [GreenKeys] OT - rotary dial telephone specs


  Back when I was 13, I had a candlestick without a dial mech and used a toggle switch in series with the line to dial...(just for fun).  I'm sure that was longer than 75ms, so I also would be interested in the limit of the pulse length.

  Curious minds, etc....

  Richard kn7sfz




    ----- Original Message ----- 
    From: gil at baudot.net 
    To: aaa-greenkeys 
    Sent: Monday, June 03, 2013 11:49 AM
    Subject: [GreenKeys] OT - rotary dial telephone specs


    So my question is what was the design standard for a dial phone's pulse-widths?  They both work just fine on my Centurylink landline, and I dialed up my cell phone and left myself a message with each phone.  Perfect dialling and audio sounded good in both directions too.


    gil



    gil smith
    greenkeys moderator
    gil at baudot.net




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