Quiz Buzzers

[[email protected]]

Hi I'm very new to this so here goes. I help run some quizzies every
now and then and thought it would be a good idea to make some buzzers
that work on a fastest finger first basis like thay use on the TV.
Making the boxes is no problem but i have no idea on the electronics
involved. My concept is each team would have a box in front of them
with a big red button on top. when this was pressed a buzzer would go
off and a light would light up but it would stop anyone else from
sounding their buzzer or light. i would need up to 8 modules to be
connected at any one time. if anyone can help me with this bearing in
mind my lake of knowledge it would be appriciated

 

[Michael A. Terrell]

Hi I'm very new to this so here goes. I help run some quizzies every
now and then and thought it would be a good idea to make some buzzers
that work on a fastest finger first basis like thay use on the TV.
Making the boxes is no problem but i have no idea on the electronics
involved. My concept is each team would have a box in front of them
with a big red button on top. when this was pressed a buzzer would go
off and a light would light up but it would stop anyone else from
sounding their buzzer or light. i would need up to 8 modules to be
connected at any one time. if anyone can help me with this bearing in
mind my lake of knowledge it would be appriciated

Do a search for "Jeopardy". This question comes up quite often, and
there are a number of circuits online.

--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

 

[GregS]

Do a search for "Jeopardy". This question comes up quite often, and
there are a number of circuits online.

Get pushbuttons from Happ Controls.

greg

 

[Homer J Simpson]

Hi I'm very new to this so here goes. I help run some quizzies every
now and then and thought it would be a good idea to make some buzzers
that work on a fastest finger first basis like thay use on the TV.

IIRC, Elektor and Silicon Chip (Au) have done this.

 

[GPG]

Here's mine
http://www.geocities.com/gpg212/1stis1st.GIF

 

[neon]

An 74139 can do that . feed back a gate to the enable 2 chips.it is only good for 4 lights want more use 74138 multiplexer.

 

[RickB]

Two recent Elektor articles are here:

http://www.elektor.com/Default.aspx?tabid=28&year=2002&month=1&art=50601
and
http://www.elektor.com/Default.aspx?tabid=28&year=2001&month=7&art=50118

Nicely designed projects. They can be bought online for UKP 1.00 each
from their website.

Richard


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