Search found 186 matches
- 02 Jan 2020 15:50
- Forum: OFF TOPIC
- Topic: Surplus FREE legacy Video display Chips...upd7220, V6366, EF9367
- Replies: 1
- Views: 7492
Surplus FREE legacy Video display Chips...upd7220, V6366, EF9367
Thinking of design / building your own Graphics Card / video board ? Then I have some surplus legacy video Chips you can have for FREE ! [/size][/color] NEC µPD7220 >> D72020 ..The High-Performance Graphics Display Controller 7220 (commonly μPD7220 or NEC 7220) is a video display processor capabl...
- 05 Oct 2019 11:12
- Forum: OFF TOPIC
- Topic: The British Camputers Lynx Microcomputer
- Replies: 6
- Views: 10892
Re: The British Camputers Lynx Microcomputer
Free ICs !! Hi. I've got some surplus ICs to give away ( for Free! ) to anyone into homebrew & DIY microcomputer building. Z80 CPUs DIP40 (NMOS/CMOS) type 128K SRAMs DIP32 64K EEPROM (W27C512 etc) DIP28 6845 CRTCs DIP40 82C55 Intel type PIO DIP40 82C51c Intel type SIO DIP SN76489 Sound Chips DI...
- 15 Jul 2019 11:19
- Forum: OFF TOPIC
- Topic: More Free Chips to Good Home
- Replies: 1
- Views: 6118
Re: More Free Chips to Good Home
Mini Memotech MTX ? Is anyone thinking of designing their own 'Mini' Memotech ? for anyone that is i've got some FREE chips they can have to get you started. Z84C00xx CPUs DIP/PLCC Z80 CTC DIP/PLCC UM61256-xx 32K Fast SRAMs Skinny DIP UM61512-xx 64K Fast SRAM Skinny DIP IS61C1024-xx 128K Fast SRAM ...
- 15 Jul 2019 11:10
- Forum: OFF TOPIC
- Topic: TMS99105 : Kit of ICs (Chips) for 'Super' Ti-99/4A Homebrew Builders
- Replies: 1
- Views: 6245
Re: TMS99105 : Kit of ICs (Chips) for 'Super' Ti-99/4A Homebrew Builders
Musings and ideas on the design of a Enhanced Ti-99/4A Design Specification : CPU (Central processor Unit): TMS99105 24MHz processor. A improved and much faster version of the original TMS9900 CPU. Memory System Memory Mapper 74xx612 (74HCT612) to allow 1 Meg of RAM/ROM. The system would boot to 12...
- 13 Jul 2019 12:24
- Forum: OFF TOPIC
- Topic: More Free Chips to Good Home
- Replies: 1
- Views: 6118
More Free Chips to Good Home
I've still got some Surplus Chips..! Anyone building their own homebrew microcomputer may be interested. These are mainly PLCC type but some are DIP or Skinny DIP Z80 CPUs PLCC44 (Z84C0020VEC type) Z180s PLCC SRAM,EPROM DIP PLCC TMS9918ANL/TMS9929ANL DIP 8477 PLCC Advanced Floppy disk controllers M...
- 13 Jul 2019 12:14
- Forum: OFF TOPIC
- Topic: Homebrew DIY SAM Coupe ?
- Replies: 18
- Views: 24841
Re: Homebrew DIY SAM Coupe ?
Quazar (For the SAM Coupe) >> https://www.samcoupe.com/ Quazar is currently designig a NEW SAM Coupe ?? Pandemonium - a new SAM! >> *** Extract from the Quazar website * below: **************************************************************************************************************************...
- 13 Jul 2019 11:54
- Forum: OFF TOPIC
- Topic: TMS99105 : Kit of ICs (Chips) for 'Super' Ti-99/4A Homebrew Builders
- Replies: 1
- Views: 6245
TMS99105 : Kit of ICs (Chips) for 'Super' Ti-99/4A Homebrew Builders
** TMS99105 Super Ti-99/4A ** For anyone designing or thinking of designing their own ‘Super’ Ti-99/4A microcomputer, I’ve asked a Chinese supplier to list a compilation of ICs which may help get you started. The Heart or Key to the list of ICs is the TMS99105, which is considerably faster than the ...
- 08 Jul 2019 11:19
- Forum: OFF TOPIC
- Topic: The ' Grundy NewBrain' a forgotten micro from the past.
- Replies: 0
- Views: 97977
The ' Grundy NewBrain' a forgotten micro from the past.
The Grundy NewBrain was a 80s Z80 based British microcomputer, now much forgotten. It was based on minimal hardware, probably to keep costs down very much in the style of the ZX81/ZX Spectrum. Hardware consisted of a Z80 CPU, RAM, ROM, a dedicated COP (coprocessor/ULA??) to do most of the Work , in...
- 01 Jul 2019 19:07
- Forum: OFF TOPIC
- Topic: TMS9995 'Mini-Cortex' Homebrew Micro
- Replies: 5
- Views: 12117
Re: TMS9995 'Mini-Cortex' Homebrew Micro
Free Powertran Cortex ICs If you're building your own Powertran Cortec I may have some surplus 'FREE' chips to help you out. As usual it's First come first Served..! If your just looking for spares for old machines..then look on: eBay.com or https://www.ebay.com/str/5hk1584?_trksid=p2047675.l2563 o...
- 20 Jun 2019 12:04
- Forum: OFF TOPIC
- Topic: The British Camputers Lynx Microcomputer
- Replies: 6
- Views: 10892
Re: The British Camputers Lynx Microcomputer
Miscellaneous : Motorola 6845 Display Controller (Video Chip) Further Reading on the 6845 (and clones) [HD46505,6845,6545,V6366 etc] Wiki : https://en.wikipedia.org/wiki/Motorola_6845 V6366 : http://www.vgamuseum.info/index.php/news/item/493-yamaha-v6366c-f Hercules Graphics Card : https://en.wikip...