Search found 134 matches

by Zippy Zapp
Wed Jun 05, 2019 6:09 pm
Forum: Help!
Topic: 4264 vs. 2164 RAM chips
Replies: 7
Views: 168

Re: 4264 vs. 2164 RAM chips

I think I read someplace that someone created a adapter board that converts a SMD DRAM that is also apparently still in production. I can't for the life of me find it but maybe someone else has heard about it. Does using SRAM change any behavior or present any kind of compatibility problem with the ...
by Zippy Zapp
Fri May 31, 2019 4:41 pm
Forum: Wanted
Topic: Anyone have an extra 1581 drive manual for sale?
Replies: 3
Views: 66

Re: Anyone have an extra 1581 drive manual for sale?

Hey eslapion, thanks for checking I appreciate that.

I may have a lead on one I am just waiting for an email to confirm. Hopefully it works out.
by Zippy Zapp
Wed May 29, 2019 8:15 pm
Forum: Wanted
Topic: Anyone have an extra 1581 drive manual for sale?
Replies: 3
Views: 66

Anyone have an extra 1581 drive manual for sale?

Hi All, I am looking for an original user guide/manual for the Commodore 1581 if you have an extra (US source preferred, English) please let me know.  I still have my 1581, including the box and everything that came with it from back when I bought it new at Toys R Us.  The problem is I loaned the wh...
by Zippy Zapp
Wed May 29, 2019 3:59 pm
Forum: Help!
Topic: 4264 vs. 2164 RAM chips
Replies: 7
Views: 168

Re: 4264 vs. 2164 RAM chips

Heh. As you can see above this was and still can be confusing with all these numbers etc. I have learned/relearned a lot since then. I have a cross reference for these numbers someplace but I will have to dig for it. But the 2164s are obviously compatible with the 4164s. The service manual lists the...
by Zippy Zapp
Thu Apr 18, 2019 8:01 pm
Forum: Help!
Topic: please help
Replies: 4
Views: 172

Re: please help

Did you try the channel select switch on the 64? Also try a composite/s-video DIN cable for the 64.
by Zippy Zapp
Thu Mar 28, 2019 4:09 am
Forum: Other 8 bit Madness
Topic: Suggestions on Plus 4 problem?
Replies: 16
Views: 1112

Re: Suggestions on Plus 4 problem?

I had no idear that the TL866 has a logic test for 74x chips. That is pretty cool. I think I would pick one up for that alone as it is still cheaper then the dedicated logic ic testers I have seen. I have a GQ-4x but it is an older revision and the latest software only works with the later revision ...
by Zippy Zapp
Sat Feb 16, 2019 4:30 pm
Forum: Other 8 bit Madness
Topic: Suggestions on Plus 4 problem?
Replies: 16
Views: 1112

Re: Suggestions on Plus 4 problem?

Cool. Sounds like you are on the right track. The MOS versions of the 74XX chips are some of the worst chips in any C64/Plus/4. According to Ray's website they are a frequent failure. Those and the TED and CPU are probably the top 3 worst chips in the Plus/4 - C16.
by Zippy Zapp
Thu Feb 14, 2019 4:43 am
Forum: Help!
Topic: Zoomfloppy nibwrite issue
Replies: 2
Views: 205

Re: Zoomfloppy nibwrite issue

I don't think I have ever tried my 1571 with ZoomFloppy. Are you trying to write something that requires the index hole sensor? I didn't think it was necessary. What happens if you try it without the -i switch? The reason it won't work on side 2 is because *most* disks don't have a second index hole...
by Zippy Zapp
Thu Feb 14, 2019 4:35 am
Forum: Hardware
Topic: What's a fair price for a 1581 drive
Replies: 9
Views: 515

Re: What's a fair price for a 1581 drive

Those be some awesome deals. You can't beat a free 1571! And that is a load of stuff for 100 bones, Nice! My 1571 also came from Toys R Us. LOL I still have the box and all that stuff with that drive too. But it wasn't FREE unfortunately. I think I bought it with my first C128. Sadly I didn't keep t...
by Zippy Zapp
Mon Feb 11, 2019 5:30 pm
Forum: Hardware
Topic: 28 pin DIP EEPROMs
Replies: 4
Views: 428

Re: 28 pin DIP EEPROMs

In that case if you don't mind China, I use jk_parts on eBay. I have had good success rate so far but of course, YMMV. ;)