phone cct

[grod]

Can anyone explain how I can make a telephone ring without being connected
to the telephone lin. This is for a play.

Thanks

 

[Richard Crowley]

"grod" wrote ...

Can anyone explain how I can make a telephone ring
without being connected to the telephone lin. This is
for a play.

It takes a relatively high AC voltage (~100V) on the
telephone line to make it ring. This can be dangerous
without special precautions.

Consider playing the sound of a phone ringing through
the same mechanism you are using for the other sound
effects.

You can rent/buy boxes that will make phones ring
(made just for theatrical purposes like yours). Or
you may be able to borrow one from a theatre
company in your area?

You didn't state your budget (if any) and lead-time
until you need it. (And availability of electronics
expertiese for possible construction.)

 

[Rein Wiehler]

grod wrote:

Can anyone explain how I can make a telephone ring without being
connected to the telephone lin. This is for a play.

Thanks

google for "ring generator" and wire it up

 

[Watson A.Name - "Watt Sun]

In article <T9wBb.10782$YJ6.320637@wagner.videotron.net>,
grodgers@videotron.ca mentioned...

Can anyone explain how I can make a telephone ring without being connected
to the telephone lin. This is for a play.

Thanks

Here are schematis for two different ring generators.
http://ourworld.compuserve.com/homepages/Bill_Bowden/page11.htm#ring1.
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