Hallo William, > Here is some more information on those chips. Your list mixes Commodore > part numbers and chip numbers. I have supplied the Commodore part numbers > where I have them. Many thanks. I didn't even know that there existed a PN beside the chip number. > 251828-03 (I have information on the -01(40 pin) and -02 > (42 pin) versions. How does the -03 differ?) I collected three of every available chip for research. I have over 240 of these chips only to find out now by this question that I haven't collected any of these :( > 325340-03 6500/1 CPU for 1520 You mean that this is the original 6500, the 6800-pincompatible 6502? > 901885-01 8050 6530-47 RIOT DOS 2.7 Micropolis > (This doesn't look right. I have 901885-04 > for the 6530-47) This is according the info from other members. But why can't your 04 be an improved version of the 01? > HM4716A Hitachi 16K*1 DRAM (This is correct) Nice, now I can repair my ZX Spectrum :) Oops, did I say something wrong? Does somebody know the pinouts of the square 8520? Thanks. Groetjes, Ruud http://home.hccnet.nl/g.baltissen/index.htm - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail cbm-hackers-request@dot.tml.hut.fi.
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