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Macintosh 512k C20 and C5 capacitor values

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Bit of an odd one this. I was sent a 512k which was a little bit... erratic. Sometimes it will bong and flash the floppy icon, other times it will just get stuck on a corrupted screen. Thinking it was a RAM issue I took the logic board and found out that for some reason someone had removed C5 and C20 at some point (?!). I know there may be ram issues or potentially issues with the roms, but I just need to find the values for those two capacitors to rule that out as an issue! 

Hope you can help :)

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