I would like to know where to get one of these chips for my Apple IIe (enchanced).
I think this maybe my start-up problem I a having.
I've been searching the internet but no luck.
Anyone know where I can get one?
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I have one on a parts board.
It'd be an inexpensive and common part. Probably USD10 plus freight, or some sort of equivalent trade; and it'd be tested first.
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I would be willing to buy one from you if possible.
So, here's the thing I would caution here: You are guessing at problems. I don't mind selling an MMU to you, but I do not want to sell you something that won't solve your problem. We've been discussing this in the other thread, and it may be best to contain it all there.
If you want to discuss some options with me in PM, feel free. I can try to run some local diagnostics on that board; no charge involved, other than freight, and see what I can discover by swapping in a number of components one at a time, to eliminate possible bad ICs, or if you want, I do have a couple of spare //e PCBs. I do not however want to sell you a part, discover that it wasn't useful, and then have you stuck with a duplicate part that someone else might need, gathering dust.
Ultimately, it is up to you, but I doubt that the MMU is the culprit here, based on our discussions in the other thread, unless it was damaged by pulling or installing boards into slots while the power was on. The MMU is not an especially comon failure component.
Locally, I have several test boards, so I could swap in your MMU and IOU to check if they generate this issue, but the cost to you will be back and forth freight; and I would STRONGLY advise against posting out that PCB if you do not have an antistatic bag in which it can fit.
I am not in this to make money, hence why I will sell components for less than half the cost of eBay, but at the same time, I do not want to give the illusion of no-cost ere. The freight cost back and forth could sum up to USD50, because of the size of the PCB. I honestly hanve no clue what it will cost these days, as I have not needed to post out anything like this in years.
I'm not even sure what the freight costs will be on the MMU chip, but I can say that the antistatic packaging the packing mterial, and the freight cost more than the part itself, which IMO is awful, but unavoidable.
Feel free to PM me with what you want to do.