[GreenKeys] Ring generator.

[Roy Morgan]

On Feb 18, 2009, at 3:31 AM, KD7JYK DM09 wrote:

> Has anyone ever experimented with a chip, for example, a 555 or  
> basic stamp,

Not me, but:

> providing the proper Hz, then kicked up through a transformer,

I seem to remember that *some* ring signals were chopped DC.  That is  
a sort of square wave, not a sine wave as you'd get from the rotary  
motors or other devices that have been described here lately.

Roy

Roy Morgan
k1lky at earthlink.net
529 Cobb St.
Groton NY, 13073