Search found 303 matches
- Sun Jul 29, 2018 2:53 pm
- Forum: Collecting and History
- Topic: Cartridge identity?
- Replies: 53
- Views: 35862
Re: Cartridge identity?
Don't leave feedback until you receive the item and are satisfied. Also if the deal falls through use ebay to file a not received complaint not paypal. Ebay automatically favors the buyer. Paypal is second fallback, and the CC company is third.
- Mon Jul 02, 2018 7:33 pm
- Forum: Buy, Sell, and Trade
- Topic: 8-Bit Guy VIC-20's for sale
- Replies: 2
- Views: 5474
Re: 8-Bit Guy VIC-20's for sale
Here http://www.the8bitguy.com/product/commo ... therboard/ $32.75 with shipping.
Keyboards sold out
Keyboards sold out
- Sun Jul 01, 2018 4:01 pm
- Forum: Collecting and History
- Topic: Holy cow
- Replies: 12
- Views: 11817
Re: Holy cow
Starting to look like hording! I shouldn't talk I have 17 and a spare motherboard.
- Mon Jun 04, 2018 3:02 pm
- Forum: Buy, Sell, and Trade
- Topic: NOS: Factory Replacement VIC-20 Motherboards - $12
- Replies: 7
- Views: 7326
Re: NOS: Factory Replacement VIC-20 Motherboards - $12
I've seen this before, and pictures...can't recall where though. Some of the boxes that contained the boards were extremely damaged, maybe even water damaged. Also the only chip really worth anything is the VIC. For $12 each you could eventually get your money back, but it's not a big money-maker.
- Thu May 31, 2018 9:59 am
- Forum: Hardware and Tech
- Topic: Simplest amplifier circuit
- Replies: 3
- Views: 4408
Re: Simplest amplifier circuit
I always just use a LM386, usually SOP8 but DIP sometimes too. it's a very simple circuit and compact.
- Wed May 30, 2018 8:03 pm
- Forum: Buy, Sell, and Trade
- Topic: penultimate WTF !??
- Replies: 11
- Views: 8830
Re: penultimate WTF !??
If EPROMs are X-Rayed during shipment it can cause issues with them. But that is a long shot.
- Sat May 26, 2018 9:20 pm
- Forum: Hardware and Tech
- Topic: Project proposal: Type 'N Talk rebooted
- Replies: 30
- Views: 23651
Re: Project proposal: Type 'N Talk rebooted
That's a cool idea. Another possibility could be a Atmega328 by itself. Check this google search first couple results : http://www.google.com/search?ei=pSIKW92 ... ino+speech
I have the SP0256-AL2 chip already so either way I like it.
I have the SP0256-AL2 chip already so either way I like it.
- Thu May 17, 2018 9:20 am
- Forum: Emulation and Cross Development
- Topic: Visual Studio Code Plugin for CC65
- Replies: 5
- Views: 7941
Re: Visual Studio Code Plugin for CC65
(from atariage) I have deleted all of my source code, both locally and in source control systems permanently. Please respect my copyrights by not distributing any of my software, whether in binary or source code form: CBM-Command NinaTerm A2Command EasyCLI EasyFlash Cart Builder Thank you. As for ta...
- Tue May 08, 2018 1:37 pm
- Forum: Hardware and Tech
- Topic: SD2IEC for VIC-20
- Replies: 24
- Views: 9166
Re: SD2IEC for VIC-20
You could mount a blank D64 and try saving to that? I usually use D64s or D81s for most things myself.
- Tue Apr 10, 2018 3:20 pm
- Forum: Hardware and Tech
- Topic: Help Required for VIC-20 Colour-Block Screen
- Replies: 37
- Views: 16506
Re: Help Required for VIC-20 Colour-Block Screen
I never quarrel online, just a friendly debate :D The 5 year figure is an industry standard assumption. There are thermal studies for 80's era low dissipation devices if you or anyone is interested that can be provided. The problem really isn't electromigration, it's the expansion and contraction di...
- Tue Apr 10, 2018 9:33 am
- Forum: Hardware and Tech
- Topic: Help Required for VIC-20 Colour-Block Screen
- Replies: 37
- Views: 16506
Re: Help Required for VIC-20 Colour-Block Screen
On the high dissipation heat sinks they use a copper plug to make contact with the chip and aluminum for the majority. With the VIC it wouldn't matter much because of the low power. I personally use aluminum.
- Tue Apr 10, 2018 7:31 am
- Forum: Hardware and Tech
- Topic: Help Required for VIC-20 Colour-Block Screen
- Replies: 37
- Views: 16506
Re: Help Required for VIC-20 Colour-Block Screen
Thank you all for making this into a 'heat-sinks versus no heat-sinks' thread... It's a no-brainier, heat sinks help in a measurable amount. One side has actual scientific studies as well as first hand testing and in my case decades of experience. The other has a theory and are referring to spec sh...
- Mon Apr 09, 2018 8:40 am
- Forum: Hardware and Tech
- Topic: Help Required for VIC-20 Colour-Block Screen
- Replies: 37
- Views: 16506
Re: Help Required for VIC-20 Colour-Block Screen
All the studies are saying it is best to keep the chips within the most narrow temperature range as possible to limit the physical stress on the chip die. Some studies show that thermal cycling is the cause of up to 50% of chip failures over the long term. We are talking about 35+ year old chips her...
- Sun Apr 08, 2018 9:41 pm
- Forum: Hardware and Tech
- Topic: Help Required for VIC-20 Colour-Block Screen
- Replies: 37
- Views: 16506
Re: Help Required for VIC-20 Colour-Block Screen
I already wrote some time ago, that I consider heatsinks with the chips in the VIC-20 as rather useless. The thermal management is already taken care about by conducting excess heat away over the chip pins onto the ground planes. Witness the problems to desolder especially the VIC chip. What kills ...
- Tue Mar 20, 2018 2:23 pm
- Forum: Other Systems
- Topic: Plus/4 joystick adapter
- Replies: 13
- Views: 9265
Re: Plus/4 joystick adapter
I got the schematic for this from http://www.commodore.ca/manuals/funet/cbm/documents/projects/interfaces/plus4joy/plus4joy.html The only change I did was changing the resistors to 220 ohm. It works perfectly, I ended up making two. I'm attaching the entire project including 3D files and an eagle PC...