[GreenKeys] OT - rotary dial telephone specs

[Richard Schumann]

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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