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Okay, this is for those who have used Valspar's Weathered Fossil and Pewter Lustre paints for a Robotron restoration. Am I right in thinking that the Weathered Fossil is just a basic grey paint and the Pewter Lustre is a clear metallic finish? Or is Pewter Lustre grey in colour too? If you...

In the Williams troubleshooting manuals, there are references to accompanying videotapes. Has anyone ever found any of these and, if so, are they available to buy or download? They'd probably be helpful to beginners like me learning to fix Williams boards. Cheers, Dominic

Anyone recognise the video input on this old PC monitor (sorry, I don't have a better picture)? I'm wondering if this might make a test bench monitor. I couldn't find a manual online or anything about it. Thanks, Dominic

I have a bunch of Williams boards to test (Stargate, Robotron, and Defender) and I want to set up a small test bench. Can you use the RGB/CGA/EGA/YUV to VGA HD video convertor boards with these games okay? Thanks, Dominic

Having fixed my power supply issues (RAM is now getting +4.9, -4.9, and 12.2), I'm trying to pin down the 1-3-8 message I keep getting on this board. I've tried swapping RAM chips, replacing the socket, and checking continuity. I thought I'd found the problem when I found the D37 trace was...

Hi I need some help with Robotron-era Williams power supplies (the ones with the OV protection built in). I had one that I did a cap kit on (except for C10 - the 18,000 mfd cap). It was working okay until the 5 volts went out and the -12 volts unregulated went up to about -30 volts. BR1 was new...

Just noticed this message on the Action Electronics site: "Action Electronics has ceased operations effective today, 07/26/10 due to economic reasons." Not that it affects me, because they didn't ship internationally, but I've seen their name come up a bit in these forums so thought it may be...

Can anyone recommend an online source for the 0.156" Molex locking plugs and headers? I'm after the sizes used for Williams games (eg, 7-way, 15-way). I was going to get a bunch from Great Plains but he's all out (unless the Keltron ones would do instead). I don't think Bob Roberts has the...

Can someone with a Robotron or similar tell me what voltages are meant to go to the rom board? Mine had one 5 volt wire connected to both the 4 and 6 pins of 2J2, but I thought from looking at the schematics that there should be 12 volts going in there (I'm probably just reading the schematics...

Early 1980s, vertical scroller, you were a cowboy on horseback being pursued by Indians and you could jump on top of a train that ran up the middle of the screen. I searched KLOV for things like train and cowboy but had no luck.

Hi I could pick up a cheap oscilloscope but it's only 10mHz and am I right in thinking this is not enough for working on old Williams boards (Defender, Robotron)? It's a Leader LBO-514, dual trace/dual channel scope. Should I save my money for something better? TIA, Dominic

Finally got my Hakko 808 and am very happy with it - great build quality and I was able to desolder a bunch of chips easily and quickly. I would happily recommend it to anyone wanting a desolderer. But I wanted to ask what temperature setting people use it at. You can set it between 380 and 480C...

Hi all Still looking for the molding trim that goes between the bezel and the CP on an upright Defender. Please PM me if you have one. Thanks.

Hello I've decided to get a Hakko 808 desoldering gun but wanted to know what, if any, extra nozzles I should order when I get it. I'm planning to do a couple of monitor recaps and some work on my Williams boards. Will the standard 1mm nozzle it comes with be okay for this or should I get...

Hi all I'm looking for a Susan B Anthony yellow "Dollars" insert (DR-16C-8715-73) for my Defender silver coin door. Does anyone have one of these (ideally NOS, but a nice condition used would work too)? If so, please PM me. Many thanks, Dominic

I'm looking to upgrade from my solder sucker (I just can't seem to get all the solder out with it) and am looking at either a Hakko 808 (about $160 from ebay) or one of these stations from Circuit Specialists: Blackjack Solderwerks BK4000: http://www.circuitspecialists.com/prod.itml/icOid/9750...

I'm looking for the trim that goes between the bottom of the bezel and the CP in a Defender upright (as seen in this thread: http://forums.arcade-museum.com/showthread.php?t=118816&page=3 ). Must be prepared to ship internationally. PM me if you have one please. Cheers, Dominic

I've seen a lot of recommendations for the Edsyn DS017 Soldapullt, but the Goot GS-100 is easier and cheaper to get down here, and it looks like it's very similar in construction to the Soldapullt. Just wondering if anyone has ever used one? http://us.100y.com.tw/pdf_file/GS-100,108,100N,108N.pdf

Does anyone know which of the two short white buttons Bob Roberts has (snow white and pure white) is the correct style for Defender and Stargate? The pure white are here: http://www.therealbobroberts.net/nosbutts.jpg and the snow white are here: http://www.therealbobroberts.net/whtbuts.jpg...

Where's the best place to buy 7400 series ICs from? Next to Bob Roberts, that is, because for us overseas buyers his "no credit card, no-PayPal" policy makes buying from him difficult (sadly). Thanks, Dominic