Search found 3 matches
- Sun Oct 23, 2011 9:10 pm
- Forum: Development
- Topic: Clock doubling on ZX80... is it possible ?
- Replies: 20
- Views: 28898
Re: Clock doubling on ZX80... is it possible ?
Wilf Rigter has some interessting things on his website, first out is a simple "fix" to increase performance http://www.user.dccnet.com/wrigter/index_files/ZX81WAIT.htm second is a "turbo" function which is as I understandfrom the thread start what you look for. http://www.user.dccnet.com/wrigter/in...
- Thu Oct 13, 2011 8:21 pm
- Forum: WANTED
- Topic: Wanted - ZX81 Issue 3 board.
- Replies: 8
- Views: 8105
Re: Wanted - ZX81 Issue 3 board.
Yes my issue3 zx81 have that resistor.
- Thu Nov 18, 2010 12:10 pm
- Forum: Hardware
- Topic: zx80/81 16K RAM
- Replies: 0
- Views: 2466
zx80/81 16K RAM
Read the thread http://www.sinclairzxworld.com/viewtopic.php?f=7&t=106&p=1040&hilit=6264#p1040 and saw that it used 2x6264 to increase internal RAM to 16K. I now happend to have two 6264 laying and thought I would installed them. I was then looking for a schematic of how to solve the RAM CS signal b...