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View Full Version : Did I do OK on these chips?



falter
December 15th, 2013, 02:34 PM
http://www.ebay.com/itm/231112302290?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649#ht_4768wt_988

Kind of a gamble, but I'm hopeful there might be a few good PET ROMs in there, and that might make the whole thing worthwhile given the programmable replacements are $30+ each. What do you guys think?

giobbi
December 16th, 2013, 01:31 AM
It seems you bought the tool box of some old C= repair man... I think most of them should be ok, because I can't believe somebody kept so many broken ICs.
Remarkable there are also some rare ICs like 6540 ROM (but what?) and 6550 ram; for not to mention 6530 and 6532, some VIC 6560, many ROMs, a lot of RAM (4116 and the equivalent 8116), etc.

IMO if most of those ICs are working, you did a bargain; if most of them are broken, you now are the proud owner of the most useless Commodore IC collection in the history ;-)

barythrin
December 16th, 2013, 07:50 AM
Think so but does depend on the status of the pulls. In general I think it's certainly good for repairing C= gear though. I'm sure several folks would like to talk to you about the 6530s. I'd be interested to see the markings on them, I think I could use one for a Kim but not sure if they're that easily identifiable or what all gear used them.

MikeS
December 16th, 2013, 08:04 AM
Quite a haul; certainly some fairly rare chips in there but testing them could be difficult unless you sell them untested, which could have its own headaches...

Definitely need a detailed and accurate list of the part numbers of the programmed parts (6530s, 6540s, etc.)

falter
December 16th, 2013, 08:38 AM
Yeah it'll be interesting to see what shakes out from this. I agree it doesn't make a lot of sense that someone would hang on to a whole ton of dead chips this long. I'm hoping it's more of a situation where a machine was scrapped for some other reason and these chips were salvaged. Of course, they could have died in the meantime. I've blown more money on less, so here's hoping it comes out ok. Hoping maybe there's something there to get my 2001-8 and my 8050 drive running again. The guy also had this auction:

http://www.ebay.com/itm/lot-of-vintage-commodore-gold-chips-MOS-6567R56A-6540-901472-04-901447-10-/231112304105?pt=US_Vintage_Computers_Mainframes&hash=item35cf5de5e9#ht_407wt_1428

But I missed it by a few minutes. Mostly printer ICs I think though, and my PET never had the white 6540s.

falter
December 16th, 2013, 05:45 PM
I think the 6540 Fairy has visited ebay. If you do a search under mps6540 there is a fellow selling a whole bunch of them.. even some white ceramics. I just bought 6.. almost a complete set for my PET. Seems that he's claiming many are NOS?

1980s_john
January 2nd, 2014, 09:58 AM
Well done, $150 is a bit more than I can afford, so thanks for owning up as the buyer! I see you also gained a load of keytops which are always useful for repairs.

I look forward to your future listings on ebay or for-sale ads on this forum....

Regards,
John

Chuck(G)
January 2nd, 2014, 10:10 AM
I think the 6540 Fairy has visited ebay. If you do a search under mps6540 there is a fellow selling a whole bunch of them.. even some white ceramics. I just bought 6.. almost a complete set for my PET. Seems that he's claiming many are NOS?

If it's the ACP seller, I do believe that they're just clearing out their old stock. ACP in Santa Ana (http://www.acpcomponents.com/) has been around for a very long time.