Williams System 11 power supply replacements, who's the best?

[keithsarcade]

Williams System 11 power supply replacements, who's the best?

Looking for a new power supply for my Pinbot. The original is severely hacked and giving me fits. Seems there's several replacements to choose from. Rottendog, Pinscore & Pinball PCB are the one's I've found so far.

Anyone here using an aftermarket PS? Any preferences?

 

[WindDrake]

I'm not using any aftermarket PSU's myself (all mine work) but a quick search here and at Pinside seems to say stay away from the Rottendog PSU, as it's under-equipped for the task.

Personally while I like PinScore a lot, I am not a fan of SMT components in an industrial device. Nevermind that I'd rather support X-Pin, as at least then I'm supporting the original designer.

That said, I like the layout of the Kohout (PinballPCB.com) power supply board. Good isolation, all through-hole parts, and big, heavy power traces. Nevermind the freaking built-in PSU meter function. Seriously, why don't all PSU's have this?

FWIW my vote is Kohout. I like that board.

 

[TheDrewster]

Get a rebuilt one from Nabours Novelty on eBay. Top notch guy that does top notch work. And he will give you a credit back for your old one as well. I bought a PSU for my former Pinbot from him and it worked 100% the entire couple years I had the machine. Still running strong to this day in its new home.

 

[keithsarcade]

Nabours doesn't have the 11A PS I'd need. And for $20 more I'd personally rather buy new technology. I did repair mine last night but with the hacks & damage it has I'd still rather replace it and just keep it around as a backup.

I too was leaning towards the Kohout PS and that's what I just ordered.

 

[stumptown]

I put an X-Pin XP-WMS8345 in a Comet I'm working on and I've been very pleased with it so far. After checking out the Kohout model I wish I'd found that one when I was shopping around initially, looks like it has a lot of nice features.

 

[local413]

I've got a handful of system 11 ps kicking around.. I know one is a 11b and pretty sure one is for a Pinbot...

 

[TOK]

I've been running a Pinscores in my Pinbot for about 2 years with no issues. The original was really hacked up.

 

[keithsarcade]

Well the Kohout PS is giving me fits. Keeps blowing the 28v solenoid fuse. Also blew the HV fuse on one occasion. All voltages & connections in my machine check out fine. Contacting Kohout for return or replacement and will update.

 

[jbk]

For what it's worth, I have PS from Rottendog and Xpin. Both provide GREAT customer service and warranty work. I have not personally used the other manufactures.

 

[keithsarcade]

I think I may have found the problem. Apparently Pin-Bot uses a 4A fuse for the solenoid circuit. The Kohout PS has a 2.5A installed. The HV fuse that blew was rated 125MA, supposed to be 250MA. I didn't have this one on hand so for now I put a 375MA in it's place, and installed a 4A in the F2 slot. So far so good. I'll report back with any problems if they arise again.