FAKE PHONE RINGS

At Busselton Repertory Club, we would like to make a modern phone "ring" ("brr-brr") on stage. We have a device that we crank to ring the bells on the old-fashioned phones.

Does anyone know how to do it? If it has to be built from a diagram or a spec, we can get access to technical people that should be able to help us. I will be in Perth in late August/early September if a personal visit will help.

Bill Macpheron
21 Averil Street
Busselton

Phone 9755 8011

Is the phone you are thinking of using in working condition. If it is then you can just send ringer voltage from a transformer to make the phone itself ring.

Hello Bill

Australian telephones operate on 50 volts dc (as set up by the PMG) and the ring voltage is 60 volts ac.

You can use a 60 volts ac transformer as a substitute for a ring tone generator.

Pins 2 and 6 on the telephone socket are used. In the 600 series telephone socket (the large cream 6 pin square ones) the bell is fed on pin 3 and there should be a link from pin 2 to pin 3, which may be removed for an external bell.

Use a working telephone so when the actor lifts up the handpiece from the cradle, the phone bell stops ringing. The actor will get a loud buzzing sound in the earpiece but by this stage you should have stopped the ringing volts.

Hope that helps.

Don

In the now digital world of telephony the ring voltage has been upped to 90 volts at 25 Hz. 60 volts was the analogue value. Not that it makes that much difference, if any, for your application, but it certainly makes the old 800 series telephone with a bell ring a whole lot louder!

Thanks Don. It sounds quite clear and we'll get in with it. I guess we place a switch or button between the transformer and phone, and flick it to create the rhythmic Brr-Brr sound. Or does the phone do that itself from the steady flow of current from the transformer?

Thanks again, Don, and thanks also to Greg for his reply.

Bill Macpherson
Busselton Repertory ClubDon wrote:
>
> Hello Bill
>
> Australian telephones operate on 50 volts dc (as set up by
> the PMG) and the ring voltage is 60 volts ac.
>
> You can use a 60 volts ac transformer as a substitute for a
> ring tone generator.
>
> Pins 2 and 6 on the telephone socket are used. In the 600
> series telephone socket (the large cream 6 pin square ones)
> the bell is fed on pin 3 and there should be a link from pin
> 2 to pin 3, which may be removed for an external bell.
>
> Use a working telephone so when the actor lifts up the
> handpiece from the cradle, the phone bell stops ringing. The
> actor will get a loud buzzing sound in the earpiece but by
> this stage you should have stopped the ringing volts.
>
> Hope that helps.
>
> Don

Thanks, passerby. I'm glad you dropped in.

Bill Macpherson

The cadence of the ring is created in the telephone exchange by the equipment, or if you are connected to a PABX from that. So you will need to switch the current on and off to make it ring the way you want.

I belong to a group called Nomad Players,Mornington, Victoria I am looking for a diagrame to build a phone ringer. Could someone help please. Alan