Try searching for 5 ohm 5% 10 watt cement resistor.

LTG : )

Yes, that's the one. Keep in mind, that's coming from china, so it would take a few weeks. Most electronics shops should carry them, though. Great plains electronics, mouser, digikey, jameco

Two examples:
https://www.greatplainselectronics.com/proddetail.asp?prod=RC10W-5
https://www.jameco.com/z/CR10-5-0-RC-Xicon-5-Ohm-10W-Wirewound-Cement-Filled-Ceramic-Power-Resistor_2246611.html

The problem ordering from those places is that if you only need like 3 resistors, shipping is killer. Order from eBay, pay a buck with free shipping, and waiting a couple of weeks is totally worth it in my opinion.

Yeah... sucks that our government doesn't subsidize our shipping rates as much as theirs does.

http://www.marcospecialties.com/pinball-parts/R10W5

https://www.greatplainselectronics.com/proddetail.asp?prod=RC10W-5

These will work.

No need for exact part especially with these.
Using a 5% part is no problem because it has *better* tolerance then the original 10% parts. In fact, I'm not sure anybody even makes these with 10% tolerance any longer.

What is tolerance? -
Based on the original 330 ohm, 10% tolerance then the actual resistor value can be anything between 297 to 363 ohms (+/- 10%). A 5% tolerance can be anything between 313 to 350 ohms (+/- 5%).

Although you should stay with the same resistance rating as the original design - going from 5 ohms to 5.1 ohms isn't going to make any difference.

Hi. I have a resistor question also. Not sure if I should start a new post or post here, but here goes...

My machine is a Williams Firepower. The resistor in question is under the play field near the center row of lights that light up the numbers 1-10/20. It is fried. There is also a resistor on one of the logic boards that looks rough. I’m not sure if this resistor controls power to the upper play field, but the multi ball Shute doesn’t eject.

Thanks for any help you can give me.
Cheers,
Chad

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This resistor is for a flash lamp bulb. It is a warming resistor which allows a small amount of current to pass thru the flash bulb. This makes the bulb light quicker and last longer. The other two resistors look like the dropping resistors for the high voltage display. When they burn open you will lose one of your displays.

This is a separate issue.

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Hey Grumpy,

Thanks for your advice.
I would like to replace these resistors but have no idea what type/size and where to buy. Where do you go for your parts?

I know I need to do a flipper rebuild and would like to get new rubber as well

Thanks,
Chad

Flipper rebuild kit from (other options but one of these three are my go to) Marco specialty, Pinball life, or Bay Area amusements - can’t remember which is cheapest.

The resistors you can get from any electronics shop. RadioShack would have been the local place but Great Plains or Digikey are good online.. values should be listed in schematics / parts listings (available possibly on ipdb if you don’t have a physical Manual copy). The values are based on the colors of the banding — can’t tell in your pics but if you can still make them out you can easily look them up.. gold or silver final band is the tolerance. Start reading from the other side. I also seem to remember those flasher warming resistors being the larger 5 or 10 watt cement resistors.. but I could be misremembering.

But ebay is really dodgy with Chinese fake or low-quality electronics parts. I'd rather pay a little bit more from mouser or digikey and know it's not a fake.

Resistors are hardly an issue for fakes in this case. Semiconductors I agree 100%.

I've dealt with Chinese manufacturing for more than 20 years and seen corners cut in the DUMBEST places, so I wouldn't even trust a direct sale Chinese cement resistor, especially not just to save a couple bucks on a one-off purchase.

If they're building thousands on spec for you or me or apple or whoever, that's a different story, but ebay sales? Dodgy.

Page 25 of the manual says that there are 330 ohm at 2 watts for the flash lamps resistors. Page 18 says the 2 resistors on the display board are 10k ohms at 1/2 watt, but there is a note that if certain chips are used that these should be 15k ohms. You will need to verify this for yourself.

Thanks to everyone who replied. It’s great to have help restoring my machine... much appreciated.

GRUMPY thanks again. You referred to the manual for resistor sizes. I did not have the original manual but I downloaded the link on this site...(mirror2.ipdb.org/files/856/Williams_1980_Firepower_Schematics_paginated_from_manual_dated_March_1980.pdf)

It’s missing pages 23 and on. They are black and whenever I scroll past page 23 the pdf crashes. I have been using an Apple phone to access it so maybe that’s my problem.

If anyone has a good version of the Firepower manual, I would really appreciate it if you want to share.

I’m off to buy flipper rebuild kit and resistors