Denial

13. Big fingers are not a problem when doing repairs (no SMT chips) 14. Replacement computer is $5 to $10 (ok, maybe $20 for a really clean unit in great shape) 15. The average user can start writing their own software for it in with only an hour's training, and sophisticated software with only abo...

What? Do you live next door to a vintage game/computer shop?! No, but when there's one nearby I go through their trash. The same goes for clone shops, repair shops, and so on. Several places around here don't throw certain kinds of things away unless they give me a shot at it first. It works if you...

DigitalQuirk wrote:I had one last night.

...Then I woke up to go to the can.

It's funny how so many of the most vivid dreams happen just at that time.



-Mark

Haha. It appears you had the by far most unusual VIC dreams of us all, both the previous one about the VIC robot and this about the chainmail memory expansion. Maybe you're extremely crafty with reusing stuff, a real life MacGyver or Scrapheap hero? Heck, I doubt even MacGyver could come up with co...

A complete Tandy T1000 PC-compatible system at the roadside, several Timex-Sinclair 1000 software cassette tapes "Astrology" and a 16K RAM expansion for same. A "TV Fun" pong-chip-based video game system, a sega light gun, an apple II joystick. A C-64 with a bad RAM chip, since r...

... if you want to initialize your original value it still seems like you're adding a lot of chips to do a simple job. With a 3xx chip you've got tristate outputs, so pull the lines up with some resistors, and disable the register output at startup. That would entail disabling the effect of the BLK...

I won't bother to quote the rant post due to length. However, I went through all the posts in this thread front to back before posting, referring back to the ones most concerned with the hardware repeatedly. What I thought I saw was a description of a system where gate delays were being used to try ...

I don't think you need to add even more chips to the circuit. In fact, I think you can get rid of some. Here's what I was thinking of for bank control: http://www.geocities.com/atari7800mod/images/Vic-20MemBankCtrl.png Depending on what else you have in the circuit (type/number of memory chips), and...

Correct me if I'm wrong, but it looks like you're not referencing the phase 2 clock in your circuits. You need to use this to clock in the data from the 6502. Basically, the data won't be stable until just a short time before the falling edge of this clock after /W and address lines have stabilized....

The difference between a luma signal and the system ground won't go above about a volt. In fact, you're more likely to find a luma+sync signal than a plain luma signal, in other words, the complete black and white composite signal. Typically these signals are less than a volt peak to peak compared t...

The difference between a luma signal and the system ground won't go above about a volt. In fact, you're more likely to find a luma+sync signal than a plain luma signal, in other words, the complete black and white composite signal. Typically these signals are less than a volt peak to peak compared t...

Yes, I haven't tried it yet because I'm terrified of the hot chassis problem. But seeing as this is a 5" TV made in 1986, and the fact that it is powered by a 12V wal-wart that converts AC to DC, that should guarantee no hot chassis, right? I mean, hot chassis TVs were the ones that had the AC...

Have you tried places like the army surplus? No, not the Salvation Army, but a place that sells new stuff bought from surplus warehouses, sometimes stuff that the army no longer will use. Your trendy TV dealer probably doesn't find a profit in still offering small, basic TVs. Another option would b...

As for building that digitizer thing: unless you REALLY want to do that, why not just buy a Koala Pad for the VIC or Commodore 64 on Ebay. They usually sell for under $10, and are very well made. The are essentially drawing tablets. Originally they were designed to go with the Dancing Bear cartridg...

In fact, I wonder, on a modern windows box, how big a program would be that simply scrolled "Hello World!" on the screen. On the VIC this would be only a few bytes long. It depends what programming language you're using, of course. You may enjoy this: http://www.infiltec.com/j-h-wrld.htm ...