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K
I really think the 8513 was meant to have large black borders all the way around the active image area. The 8513 that you've just fixed...
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K
Something that I've always wondered: does increasing B+ voltage also increase the CRT (anode) voltage? Or is that regulated in some...
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K
kdr replied to the thread
Unknown IBM 5150 Card.
Ah, a print spooler makes a lot of sense! The MCS-48 would be plenty fast enough to marshal data into and out of the print buffer. And...
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K
kdr replied to the thread
Unknown IBM 5150 Card.
I can just about make out the frequency of the crystal as 3.579545 Mhz which is precisely the NTSC colourburst frequency, and that fact...