Game Show Indicator Lights (Who's First)

Parts List:

Quantity       Description                   Radio Shack Part Number

1         4 Amp/400 Volt Bridge Rectifier            276-1173
3         Silicon Controlled Rectifier (SCR)         NTE5457
3         120 VAC/ 25 Watt incandescent lamp
1         50-100 microfarad/ 200 volt capacitor
1         1000 microfarad / 35 volt capacitor        272-1032
1         50 ohm resistor/ 5 or 10 Watt              271-133
3         Push Button Switch (normally open)
1         Push Button Switch (normally closed)
3         2K resistor, 1/4 watt                      271-1325
4         1N914 Diode
1         51K resistor, 1 watt
1         2 Amp Fuse                                 270-1064
1         Relay (SPDT) 9 Volt DC, 500 ohm coil       275-005