Heads up if you have an aftermarket power supply from Boston Pinball. I just received this message from them, sounds like they had some parts issues that can lead to voltage drop and are looking to get everyone who purchased a potentially affected power supply squared away with repair or replacement:
"Hi, you recently purchased a 5V Power Supply for Gottlieb Pinball Machines from us. We discovered that some of the
supplies have a problem with a diode that can cause the voltage to drop below 5V when under load. We would like to
either send you a new diode or repair the supply you have. Please let us know what you prefer. If you have soldering
skills, we can just send you the diode and you can replace it. If you would like to have it replaced, we have set up
an ebay item # XXXXX, if you purchase this, we will send you a new supply, then you can do a request refund with ebay, and once you return your supply we will refund the $20 and shipping cost.
Again sorry for the inconvience, we stand by our products and strive to give you the best we can and would like to
correct this problem to avoid you having any problems with the supply in the future.
Please return the power supply within 14 days to recieve your refund.
Thanks, Jim "