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KC9UDX
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KC9UDX
Space Commander
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Today,
10:54 AM
KC9UDX
replied to a thread
Apple III Repair
in
Early Apple (I, ][, ///, etc.)
What is the supply voltage at the 6502? What kind of scope are you using? How does the clock circuit differ between 1MHz and 2MHz operation? What...
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1 replies | 42 view(s)
Yesterday,
06:38 PM
KC9UDX
replied to a thread
Introducing Save the Machine Computer Preservation Group
in
Events and Organizations
Ouch. What was in there?
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2 replies | 558 view(s)
July 20th, 2017,
06:01 PM
KC9UDX
replied to a thread
ROM binaries for a PET 2001 clone
in
Commodore
There is a key marked RUN/STOP. Unshifted, it is STOP, which is equivalent to Ctrl-Break or Ctrl-C on other machines. Shifted, it is RUN, which in...
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20 replies | 465 view(s)
July 18th, 2017,
04:39 PM
KC9UDX
replied to a thread
ROM binaries for a PET 2001 clone
in
Commodore
Too late now, but you could have saved a whole lot of trouble by using just the RUN key instead of all those other keypresses. Why does the text...
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20 replies | 465 view(s)
July 18th, 2017,
04:30 PM
KC9UDX
replied to a thread
C16 not working!!!
in
Commodore
I don't know anything about TED, but it is generating a raster. What should it look like at startup? For the 7501, follow the same procedure as...
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33 replies | 953 view(s)
July 18th, 2017,
10:34 AM
KC9UDX
replied to a thread
Decided to do a hot car experiment.
in
General Off Topic
I agree strongly with the last two posts. A mechanical thermometer is your best bet. A mercury thermometer is almost guaranteed accurate. Almost...
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44 replies | 1130 view(s)
July 17th, 2017,
05:53 PM
KC9UDX
replied to a thread
Retrobright service request
in
Off Topic Marketplace
Or spray bomb clear coat?
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10 replies | 273 view(s)
July 16th, 2017,
02:36 PM
KC9UDX
replied to a thread
Turning a Raspberry Pi into a Parallel "Zip Drive"?
in
General Vintage Computer Discussions
The hundred megabyte floppy was a great concept. And iomega almost got it perfect. If it hadn't been for the Click of Death, I'd have had one or...
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33 replies | 573 view(s)
July 16th, 2017,
02:26 PM
KC9UDX
replied to a thread
What is this from
in
Early Apple (I, ][, ///, etc.)
Part of my nostalgia with ][+s is having one of those double-side-tape-stuck inside. Every one I dared open (most of the ones I saw) when the...
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4 replies | 189 view(s)
July 16th, 2017,
11:37 AM
KC9UDX
replied to a thread
Turning a Raspberry Pi into a Parallel "Zip Drive"?
in
General Vintage Computer Discussions
Yep. I thought to say $5, but having not researched it myself, I said $10, only to look the fool anyway. :)
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33 replies | 573 view(s)
July 16th, 2017,
11:32 AM
KC9UDX
replied to a thread
Turning a Raspberry Pi into a Parallel "Zip Drive"?
in
General Vintage Computer Discussions
Post 8. Based on the above, a null modem may even be unneeded.
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33 replies | 573 view(s)
July 16th, 2017,
10:45 AM
KC9UDX
replied to a thread
Turning a Raspberry Pi into a Parallel "Zip Drive"?
in
General Vintage Computer Discussions
RPi has built in RS232. There's no need for a USB adaptor. I think you do need a level shifter though. There are instructions out there somewhere....
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33 replies | 573 view(s)
July 16th, 2017,
08:36 AM
KC9UDX
replied to a thread
Turning a Raspberry Pi into a Parallel "Zip Drive"?
in
General Vintage Computer Discussions
In that case, you should still be able to use an RPi.
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33 replies | 573 view(s)
July 16th, 2017,
01:07 AM
KC9UDX
replied to a thread
Turning a Raspberry Pi into a Parallel "Zip Drive"?
in
General Vintage Computer Discussions
I may be misunderstanding, but I thought what was being discussed was emulation of a ZIP drive, not an interface for a real one. In which case, I...
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33 replies | 573 view(s)
July 16th, 2017,
01:00 AM
KC9UDX
replied to a thread
Anyone use Red Hat?
in
General Off Topic
I seriously think "hours of messing around in bash" is one of the things most users of Linux greatly enjoy. Since the first time as a Solaris...
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21 replies | 595 view(s)
July 15th, 2017,
06:18 PM
KC9UDX
replied to a thread
Turning a Raspberry Pi into a Parallel "Zip Drive"?
in
General Vintage Computer Discussions
You'll need some extra hardware to emulate the Click of Death, if you're using an RPi.
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33 replies | 573 view(s)
July 15th, 2017,
02:56 PM
KC9UDX
replied to a thread
Grounding with antistatic wristband/mat
in
General Vintage Computer Discussions
You could theoretically connect to any pin of an outlet for static dissipation. (Do NOT do that.) But your ground pin is safe. That is, it had...
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11 replies | 244 view(s)
July 15th, 2017,
09:07 AM
KC9UDX
replied to a thread
Grounding with antistatic wristband/mat
in
General Vintage Computer Discussions
I make it a point to touch something grounded whenever I sit down at the bench to work on something static sensitive. There's nothing at my bench...
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11 replies | 244 view(s)
July 15th, 2017,
09:00 AM
KC9UDX
replied to a thread
Replace Ni-Cd BIOS battery with Ni-MH? Is that safe?
in
Handhelds/Portables
I've been using them for years in handheld transceivers that I rarely use. They stay plugged into their chargers intended for NiCd battery packs. ...
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18 replies | 450 view(s)
July 14th, 2017,
05:15 PM
KC9UDX
replied to a thread
Replace Ni-Cd BIOS battery with Ni-MH? Is that safe?
in
Handhelds/Portables
I'd put Eneloops in and let em charge.
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18 replies | 450 view(s)
July 14th, 2017,
01:33 PM
KC9UDX
replied to a thread
Replace Ni-Cd BIOS battery with Ni-MH? Is that safe?
in
Handhelds/Portables
NiMH is generally accepted to be drop-in replacement for NiCad (albeit incorrectly as zombienerd points out.) You may be able to still get a NiCad...
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18 replies | 450 view(s)
July 14th, 2017,
11:51 AM
KC9UDX
replied to a thread
Most Collectible Microcomputers of All Time
in
General Vintage Computer Discussions
The fact that Jobs is deified and no one knows who Tramiel was is evidence of how unjust society is. No one did more to make computers something...
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29 replies | 854 view(s)
July 13th, 2017,
10:08 PM
KC9UDX
replied to a poll
delete this thread please
in
Rants
I started a different thread, and mistakingly hit the BACK button. Powered down the device and when it came back up it re-posted.
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17 replies | 469 view(s)
July 13th, 2017,
07:25 PM
KC9UDX
started a poll
delete this thread please
in
Rants
Browser hiccup.
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17 replies | 469 view(s)
July 13th, 2017,
07:11 PM
KC9UDX
started a thread
LEDs. What gives?
in
Rants
I got behind a new car with a "burnt out" LED tail lamp, and was thinking about how oddly prevalent this seems. Ten minutes later, I see a car...
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19 replies | 545 view(s)
July 13th, 2017,
05:19 PM
KC9UDX
replied to a thread
Fire in the hole!
in
Vintage Computer Hardware
After some thought, I was wrong; it wasn't every time. There was one time that I got a refund, and a new, working one shipped unexpectedly.
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20 replies | 572 view(s)
July 13th, 2017,
02:37 PM
KC9UDX
replied to a thread
Fire in the hole!
in
Vintage Computer Hardware
You're very lucky to get a refund. Every time I've had this sort of problem, I was offered to ship the item to an unspecified place on China (a...
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20 replies | 572 view(s)
July 13th, 2017,
04:06 AM
KC9UDX
replied to a thread
Most Collectible Microcomputers of All Time
in
General Vintage Computer Discussions
No IMSAI? Apple /// (I'll always have wanted one, probably never buy one). Colour PET. Amiga 3000T. Commodore 65.
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29 replies | 854 view(s)
July 13th, 2017,
03:59 AM
KC9UDX
replied to a thread
C16 not working!!!
in
Commodore
You won't know if you succeeded if the rest of the system isn't working. If it isn't, then it's entirely possible that your 7501 is working.
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33 replies | 953 view(s)
July 12th, 2017,
09:41 PM
KC9UDX
replied to a thread
Anyone use Red Hat?
in
General Off Topic
This Monday Morning Quarterback says that if those were the reasons they use RedHat, they would rather be using OpenBSD.
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21 replies | 595 view(s)
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About KC9UDX
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About KC9UDX
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Star One
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Space Commander
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