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Edit2: I noticed that the file SDA0:BASIC.UF was the last file in the directory listing. On a hunch I just renamed the file to BASIC.JK and recopied...

Here is a link to the ZIP files: *.IMD *.RAW *.TXT *.HFE https://drive.google.com/drive/folders/1C98RYU5R10vzEdDRytV4Jt_TSx_cf8Dr?usp=sharing...

Not necessary Chuck (G) It is not available for sale anymore. Don't want to get in trouble Tom.

My thoughts are definitely PC focused. I forgot about the SCSI floppy -that is the closest to what I was thinking! I can completely see why an...

thank you to dalforth to pointing me into a source of motherboard descriptive that had my system listed. (good web site btw) ...

I’m relatively new to this forum and I agree arguing semantics over the use of the word brittle is ridiculous. When I got back into vintage Mac...

Wow! The presence of the floppy drives appears to indicate you have the 8080 computer version of the Intecolor!

Outstanding progress! I believe Dave has a 4052 disassembler, but he has not been working on Tektronix for some time now. Otherwise, the 4052...

Thanks Dave! The error mis-reports that it is a write when in fact it is a read. The last few messages from os8disk are: Successfully completed...

It is easy enough while your there you can do either two things, replace the current cord with a Home deport power cord (look in electrical you will...

I changed my BIN2IMD command to: $ BIN2IMD RLDH.RAW RLDH.IMD DM=5 N=40 SS=512 SM1=0-9 HM0=0.10 SM0=10-19 HM1=0.10 IMageDisk Utility 1.18 /...

Steven, Yes, THANKS for that question about your Linux Utils. That was the one thing that was causing the problem. I shortened the names to...

The Intercolor I have is an early 8052 model. Here are some photos:-

My ISC is an 8052. Here are some pictures:- NB. I don’t think I have any documentation but I have not had time to check.

Thanks for the response; I thought you might just dump it in the "why bother" category. It prompted me to actually look up the details of what...

Sorry Gene I can’t see one.

Those are nice refresh traces. Do you see them making their way all the way to the DRAMs themselves (i.e. through the muxs)? (And you are 101% sure...

I thought about that but rejected it at first because I did not have a good 4052 assembler / disassembler. But since all other options were even...

Years ago the Keyboard crowd liked those, Dunno if they still do though

And in those 33 years no one has generated a report on the characterization of the filters in the read channel of all the models of disk drives and...

There appears to have been a cost reduction in the design of SFD-321B drives from 4 to 2 ICs integrating the r/w channel and stepper driver into the...

It should work, I remember having to do the same a long time ago for my 486 with CRT monitor, By the time the display came up it had already timed...

Those traces look fine to me (on a quick check at least). As you can see, triggers are the all important factor with both an oscilloscope and a...

So further testing has determined the pot to be good. I desoldered the pot from the board and on its own it provided a smooth resistance from 0 to...

I recently ran into the same issue with my AMI Enterprise III motherboard. The third PSU connector is 3 5V and 3 ground pins. Apparently it was a...