Re: Need Door Bell generator for whole house audio

[Marc F Hult <MFHult@xxxxxxxxxxxxxxxxxxxxx>]

On Thu, 05 Jan 2006 19:27:44 GMT, "Eric" <eric.ritchie@xxxxxxxxxxx> wrote in
message  <Qqevf.8133$gq4.7605@trndny04>:

>I would like to hook up a door bell generator to the paging input of my
>whole house audio system. The only thing I really need is something that
>will generate a "ding-dong" when a contact is closed. I see some kits on
the
>web but I am wondering if anyone has actually done this and what they have
>used. I am looking to buy this in the USA. I could probably wire up a
>circuit with an IC but I don't know who sells this stuff retail, like in a
>Radio Shack or whatever. Please advise. Thanks.
>

The Elk 930  is a "doorbell and telephone ring detector" module that  with
open-collector outputs that can be used as digital outputs or to control
relays. Each module can be used for two doorbells and one phone line. Elk
also  has a variety of horns, chimes, and programmable and pre-programmed
voice modules that interface directly (no relay needed).

http://www.elkproducts.com/products/elk-930.htm

... Marc
Marc_F_Hult
www.EControl.org