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by ral-clan
Sun Dec 03, 2017 8:40 am
Forum: Collecting and History
Topic: Possible MOS tech docs find
Replies: 2
Views: 96

Former MOS plant being cleaned out.

There's a really cool thread over on the Vintage Computer Forum: http://www.vcfed.org/forum/showthread.php?60872-Gmt-plant-final-cleanout-commadore-stuff-help! The old MOS plant is finally being cleared out, and one of the salvagers, after destroying about five C64DX's (C65s!), realised there might ...
by ral-clan
Mon Nov 20, 2017 6:47 pm
Forum: Hardware and Tech
Topic: What bandwidth oscilloscope for 1541 alignment?
Replies: 11
Views: 199

Re: What bandwidth oscilloscope for 1541 alignment?

I'm guessing you might have seen my last post on my 1541 calibration issue. It came down to using an alignment disk or an oscilloscope. I actually ended up buying an oscilloscope, it's a Tektronix 2230 100Mhz digital oscilloscope. The reason why I bought that model is because first I don't like osc...
by ral-clan
Mon Nov 20, 2017 6:42 pm
Forum: Hardware and Tech
Topic: What bandwidth oscilloscope for 1541 alignment?
Replies: 11
Views: 199

Re: What bandwidth oscilloscope for 1541 alignment?

Or you can run Qubes OS and have one of the VM templates as Win7. Or vmplayer with a Win image. I realise running a VM with Windows in it could be a solution to getting one of these USB scopes working within Linux. However, in my case, I specifically run Linux (Lubuntu - light Linux) so I can keep ...
by ral-clan
Mon Nov 20, 2017 6:08 am
Forum: Hardware and Tech
Topic: What bandwidth oscilloscope for 1541 alignment?
Replies: 11
Views: 199

Re: What bandwidth oscilloscope for 1541 alignment?

I have been looking at the Hantek, but my problem is that I run Linux on my computers, and these USB scopes need Windows for their software. As for the used route, I have had really bad luck with getting used ones that fail shortly after and become useless, so I won't risk it unless I can test befor...
by ral-clan
Sun Nov 19, 2017 9:16 pm
Forum: Hardware and Tech
Topic: What bandwidth oscilloscope for 1541 alignment?
Replies: 11
Views: 199

What bandwidth oscilloscope for 1541 alignment?

Hi, If I ever get an oscilloscope, there are probably only a few things I will use it for: 1. 1541 drive alignment 2. calibrating the sound chips on my old Roland Juno 106 sythesizer using the service manual and circuit board test points. 3. checking motherboard signals on old 8-bit computers to dia...
by ral-clan
Thu Nov 09, 2017 6:32 pm
Forum: Programming
Topic: MINIGRAFIK lineart
Replies: 12
Views: 362

Re: Re: MG lineart - Castles

How do I view these?

I loaded them into VIC both expanded RAM and non expanded and after RUN nothing happened.
by ral-clan
Sat Oct 28, 2017 5:38 am
Forum: General Topics
Topic: Commodore Store Displays?
Replies: 6
Views: 190

Re: Commodore Store Displays?

I worked in a K-Mart Canada electronics department during the C64/Amiga years (late 1980s) and don't remember any specific Commodore branding for the displays. The Amiga and C64 were set up on display racks as demonstrators, but these were K-Mart racks, not Commodore provided. I can't remember seein...
by ral-clan
Fri Oct 13, 2017 5:18 am
Forum: General Topics
Topic: Vic-20... still keeps on tickin'
Replies: 6
Views: 327

Re: Vic-20... still keeps on tickin'

Welcome. Nice to have another Ontarian here. Your web-site is impressive! I also started around 1978 on my school's PET, although you are waaaay beyond me in terms of your electronics skills.
by ral-clan
Mon Oct 09, 2017 7:12 am
Forum: General Topics
Topic: 8bit Guy covers Super Expander and Prom Queen
Replies: 19
Views: 984

Re: 8bit Guy covers Super Expander and Prom Queen

Whether you like his videos or not, he apparently doesn't respond. I too have a promqueen and need the rom, but he will not answer a pm or message left on the video. he has shown up at ECCC/vcfmf before, but when people have something rare and can't/won/t share the software, it really turns me off ...
by ral-clan
Thu Aug 24, 2017 8:42 am
Forum: Hardware and Tech
Topic: Odd Issue: Freezes/Unfreezes When Bumped
Replies: 10
Views: 243

Re: Odd Issue: Freezes/Unfreezes When Bumped

You might also want to try reseating / the fuse and cleaning contacts on it (not sure if the later VICs have a motherboard glass fuse, though).
Since you mentioned it happened when typing, I would also try swapping the keyboard from another VIC into it if you cannot isolate the problem.
by ral-clan
Thu Aug 24, 2017 5:25 am
Forum: Hardware and Tech
Topic: Odd Issue: Freezes/Unfreezes When Bumped
Replies: 10
Views: 243

Re: Odd Issue: Freezes/Unfreezes When Bumped

In this case the first things I would do are:

- reseat all socketed chips (but you said it was a later version so there might not be any)
- clean connectors on all i/o ports
- reflow all solder points on the bottom side of the board.
by ral-clan
Tue Aug 22, 2017 5:23 am
Forum: General Topics
Topic: Usb joystick/gamepad with Vice?
Replies: 2
Views: 110

Re: Usb joystick/gamepad with Vice?

I cannot stand gamepads. I guess that's because I grew up in the era of proper joysticks. It doesn't feel right to play any game from the joystick era on a gamepad to me (and I can't use them well). So I bought a cheap USB gamepad, opened it up and soldered a DB-9 connector to its control contact po...
by ral-clan
Sun Aug 20, 2017 9:17 am
Forum: Collecting and History
Topic: Rally X packaging - mock up?
Replies: 9
Views: 244

Re: Rally X packaging - mock up?

Just looking at the photos of the artwork, it seems to have been printed on a colour inkjet printer (I think I can see the print-head banding). If so, this would put it far past the date the cartridge was actually released. It still makes for an interesting mystery though. It is possible that Commod...
by ral-clan
Sun Aug 13, 2017 2:32 pm
Forum: Other Systems
Topic: My PET 4032 is dead
Replies: 30
Views: 529

Re: My PET 4032 is dead

Glad you got your PET 4032 working. I had the same problem with the power socket of my VIC-1540 floppy drive. I turned it on, walked away and came back a few minutes later to smoke coming out of the back end. The power socket was burned up. It was the same white coloured part that was in your PET. S...
by ral-clan
Mon Jul 03, 2017 8:02 am
Forum: Emulation and Cross Development
Topic: Disk image editor for Linux?
Replies: 5
Views: 238

Re: Disk image editor for Linux?

I figured it out. The .d64 I was using was copied from the TPUG CD-ROM library, so it still had the read-only flag on it. I changed the write permission in Linux, then I could write the file to the disk using write testfile.prg test (when in interactive mode) or c1541 testdisk.d64 -write testfile.pr...

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