Bought a HS years ago. It has a Happ power supply mounted on the inside top of the head. I thought is was factory at first. The siren and light work fine but sometimes in attract mode the siren clicks, or maybe it's the relay? When dropping a coin in, the siren spins and doesn't click. Weird. I realized later on that the power supply is a hack because it was fitted with a 12V siren. I bought a spare siren with a motor from a fellow Pinsider a while back for a spare.

This past summer I bought another HS with the original siren setup and it has 4 wires going to the lamp socket, 2 solid white on one side and white with blue hash marks for the other. The spare that I bought only has 2 wire for the lamp and 2 for the motor. See pics. I can't understand why the one has the extra wire to the lamp socket. Also what is the correct lamp for the siren? 12V or 24V? I plan to remove the 12V siren and replace with the original spare. The red wires were cut and the fuse was bypassed so I have some work to do. Have to buy a new 3 position connector as well.

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Thanks I will look that up. Both assemblies are the same except for the mounting plates and the extra lamp wires on the first pic. The orientation of the motor is also different but the motors are the same with the same shaft length. The assembly from the second pic doesn't match any screw holes inside the top of the head. Is this the relay for the siren motor? ebay.com link: New F 14 Tomcat High Speed Pinbot Road Kings Pinball Machine Relay Board C 11232

Thanks, after reading the rebuild thread, I see you know a ton about HS. I notice a clicking sound when the beacon turns in attract mode and also hear it when you rip the spinners when the yellow arrow inserts are lit, what makes that sound? I'm assuming it's part of the "special" solenoids? I'm little confused about those. I know that I have at least one special solenoid circuit not working, it's the double flashers on the right side of the backglass.

I was just on marco looking at all the HS parts. They have all the parts for the beacon. The siren assy that they have looks just like the second pic I posted, minus the wiring and motor. I'm thinking repro. Maybe mine is a repro also. Mine has the corner cut off the plate like Marcos. The plate on the assy in the first pic is really rough, it seems it was a make shift plate. It's roughly cut, not squared off and has surface rust on the cut edges. Weird to say the least. The lamp arm does have the original brass rivets though, so who knows!

Is that relay supposed to click that loud? It's been a while but I think I did check those lamps and they were good, yes the ones on the left do light up. I ordered the beacon assy from marco so I will have one for each game. The Marco one doesn't have any wiring to the lamp so I need to add that myself.

Out of curiosity, will a sys 11 power supply work in a DE Robocop?