From: “Jim Knight”
Newsgroups: rec.games.pinball
Subject: FYI: First Pics Improved Through-Hole WPC Driver Board

I know you guys are able to repair your WPC driver boards; However, giving
a heads up on our latest redesigned product which can be used to replace
WPc89 & WPC-S driver boards.

We just got the board in and here is a picture of the front and back of the
blank PCB

https://home.comcast.net/~rottendog/wdp089.htm

We are still not sure of the final cost of the completed board as the
assembly house has not pulled together the final numbers. It will, though,
be less expensive than anything else out there.

Unless unforeseen major design defects are found, these should be available
in February 2006 time frame.

Design changes include:
-Discrete diodes replacing all Bridge Rectifiers
-Low Voltage Dropout +5V regulator - needs only 0.5V supply above +5V!
-Lower inrush current into all voltage regulators
-Logic Level FET’s simplifying the coil drive circuits
-Test points for all voltage supplies
-Centrally located LED’s with attached test points
-Beefed up ground plane (almost entire bottom side)

Again, just giving the community a “heads up”.

Jim Knight
734 330 5543

PS this is a ROTTENDOG AMUSEMENTS product and is clearly marked so. It is
unmistakably a new design which in no way purports to be a Williams or Bally
product!

PSS let’s fire up the soldering iron.