I search through the forum and some info, but not enough. My friends and I want to build a game show buzzer like that of Family Fued. Two person buzzer (or light), that locks out the other.
Of my friends, I am the only who can physically build it - but have no idea as to the design. Can anyone help?
Key is, it has to be simply. I found a schematic online using SCR's or Triacs. But I know nothing about part numbers, and the part numbers used in that schematic are like 30 years old, and I cant find them anywhere.
The schematic I found is at http://www.techlib.com/electronics/graphics/simplegame.gif
I could use that, but I need to know the part number of a commonly available SCR that will work.
Any help is greatly appreciated.
Thanks
John
Of my friends, I am the only who can physically build it - but have no idea as to the design. Can anyone help?
Key is, it has to be simply. I found a schematic online using SCR's or Triacs. But I know nothing about part numbers, and the part numbers used in that schematic are like 30 years old, and I cant find them anywhere.
The schematic I found is at http://www.techlib.com/electronics/graphics/simplegame.gif
I could use that, but I need to know the part number of a commonly available SCR that will work.
Any help is greatly appreciated.
Thanks
John