[VoIP] Coin relay controller

[Donald Froula]

...only if you cap filter it. Wouldn't unfiltered,
bridge rectified have about the same RMS as sine AC?
The frequency is doubled, of course.

Would it be possible to add another relay so that the
110 could be sent on T/R/S instead of a separate
connection to the relay?

Don
--- info at sibta.com wrote:

> OMG!  To paraphrase McDonald's: "Would you like
> 'Fried' with that, Sir?"
> 
> Full wave rectification of 120Vac will get you 170
> Vdc.
> 
> There are surplus -48Vdc to +/- 130Vdc converters
> available.   But hey, this way is more fun.
> 
> APB
> 
> 
> > ----- Original Message -----
> > From: "Donald Froula" <dfroula at sbcglobal.net>
> > To: voip at ckts.info
> > Subject: [VoIP] Coin relay controller
> > Date: Sun, 19 Aug 2007 19:33:01 -0700 (PDT)
> > 
> > 
> > Anyone ever build this coin relay controller
> circuit?
> > Looks like an easy way to get a coin phone
> working.
> > 
> >
>
http://mysite.verizon.net/dalderdi/phones/payphone.htm
> > 
> > Don
> > _______________________________________________
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> 
> >
> 
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