Er, are we being sloppy here rounding 17 to 20? Or do the weirder countries
[ie not Australia :-)) ] use 20 ? I thought it was bad enough rounding 16
2/3 [16 and two thirds] to 17 !
My home system used a motorised exchange ringer running at 16 2/3 . Had to
replace the contacts with standard 3000 type as the scrappies always ripped
the platinum ones off.
John K.
[apologies for more drift in subject ]
----- Original Message -----
From: "Wayne de Geere III" <wa...@degeere.com>
You must be a real phone fan to know that proper ring generation is at
20Hz, I'm impressed!
On 2011 Jun 30, at 20:34 , David Forbes wrote:
I used to own an HP 201B audio signal generator. It was powerful enough
to ring a telephone bell, providing 100V RMS at 20 Hz.
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