bell/buzzer board

[Firefighterwatts]

hi i need help in making a bell /buuzzer board, the kind of thing that is used
on t.v panel games where the quickest on the bell/buzzer lights their light and
gets to answer the question. i hope someone out there can help

 

[CFoley1064]

Subject: bell/buzzer board
From: firefighterwatts@aol.com (Firefighterwatts)
Date: 11/29/2004 1:00 PM Central Standard Time
Message-id: <20041129140022.06555.00000865@mb-m24.aol.com

hi i need help in making a bell /buuzzer board, the kind of thing that is
used
on t.v panel games where the quickest on the bell/buzzer lights their light
and
gets to answer the question. i hope someone out there can help

Try this:

http://www.techlib.com/electronics/games.html

I like the first circuit, with the 12VDC power supply (2 6V lantern batteries
in series is OK for school stuff, where you can't plug anything in) and the 6V
lantern bulbs. It's just about the stone simplest type of indicator circuit
for this stuff (and the parts have Digi-Key part numbers). The only addition I
would make is to put 470 ohm 1/4 watt resistors between the gate and the
cathode of the SCRs to help prevent false triggering.

The addition below the first circuit is good if you want to add a buzzer. Be
sure to use a separate 9V battery for the buzzer like it says, as it might
trigger the SCRs.

Good luck
Chris

 

[Bill Bowden]

firefighterwatts@aol.com (Firefighterwatts) wrote in message news:<20041129140022.06555.00000865@mb-m24.aol.com>...

hi i need help in making a bell /buuzzer board,
the kind of thing that is used on t.v panel games
where the quickest on the bell/buzzer lights their
light and gets to answer the question.

There is a 'game show' circuit at this address:

http://ourworld.compuserve.com/homepages/Bill_Bowden/page7.htm#game1.gif

-Bill