It's a 1N4004.
1980 WMS parts book shows it as part number 05-6258.
http://www.planetarypinball.com/mm5/merchant.mvc?Screen=BOOK
Which translates to a 1N4004.
(Topic ID: 298058)
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Quoted from pins4u:Actually I have no idea why they still bother to make them?
They're rated at 400 volts. I'm not an EE, but weren't they overkill to begin with? The drive transistor will fail long before the diode.
Quoted from pins4u:Sure, but when they are all the same price why bother with the 4004?[quoted image]
I get mine by the handful out of bins at a local place (silicon valley). A nickel each. At that price with no shipping, it's a no brainer. Will have to look next time to see what they charge for higher rated 1N400X diodes. Place has lots of other pinball components too, so I never drive there just for diodes.
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