Author Topic: The warmth of an old girl  (Read 2146 times)

0 Members and 3 Guests are viewing this topic.

Offline Retropin

  • Trade Count: (+4)
  • ******
  • Forum Posts:
Re: The warmth of an old girl
« on: September 16, 2008, 12:38:49 AM »
Just a quick update on this game. I havent had much time to work on it yet, but ive powered her up to see where i need to go with this.


Im glad to say that it all seems to work if the relays are activated by hand inside the cabinet. The kickout works OK as do the flippers. But all the bumpers need to be done by hand. There are no pop bumpers on this - only passive, and to light each one, it has to be hit by the ball. Most of the 60 year old bulbs still work



The flipper buttons are activated through  2 copper contacts on the underside of the PF. When the PF is down, they sit on 2 others in the cabinet - gotta love those early connectors. Needless to say that these will need to be kept bright.


Main issue is the selenium rectifier mounted on the transformer. This is meant to convert the AC to DC. Its way gone and theres not enough DC power to pull in the relay stacks. When a contact is made they just judder trying to pull in. After about 10 mins, this rectifier really starts to warm up and emits a really strong meltdown smell. This can be replaced with a bridge. But heres the rectifier here
.
Ive got another Genco machine that has a rectifier. This one works OK if you give it 5 mins to warm up. I think this is normal, they need to build up heat, all of them have large cooling fins . This rectifier is much bigger though - about 3 times the size of the previous one




Another thing with this machine is that the games played counter is still connected and only reads 246 games. 3 of those are me  messing about with it to ensure it still works. Thats an average of 14.6 games a year.

Ill be pulling her apart this weekend for a big clean up, also hopefully get a game out of her. The backglass will be the very last bit ill do, its much safer in the machine right now