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Tynemouth Software has developed a replacement keyboard for the Commodore PET computers. The replacement keyboards are available for the "graphics" keyboard and the "chicklet" keyboard. The keyboard is now also available with a black circuit board.
2018-08-10 - 13:06:00 - Week: 32 - Item number: 6441 - Category: KIM-1, PET, CBM, Hardware
Galb2x2 made a video about recovering a cassette tape for the Commodore PET computer. He uses a C2N Datasette and an Arduino.
2018-07-27 - 13:08:00 - Week: 30 - Item number: 6417 - Category: KIM-1, PET, CBM, Hardware
Dave Bradley made a video about the repair of a Commodore Super PET.
2018-06-22 - 13:13:00 - Week: 25 - Item number: 6333 - Category: KIM-1, PET, CBM, Repair
Tynemouth Software has developed a replacement keyboard for the Commodore PET computers. The replacement keyboards are available for the "graphics" keyboard and the "chicklet" keyboard.
2018-05-25 - 13:12:00 - Week: 21 - Item number: 6273 - Category: KIM-1, PET, CBM, Hardware
Iz8dwf made a video of the development of his Commodore PET RAM/ROM replacement board. The specifications are: 2 x ROM (24Kbytes) and 2 x 4K ($F000 - $FFFF).
2018-05-25 - 13:09:00 - Week: 21 - Item number: 6270 - Category: KIM-1, PET, CBM, Hardware
Iz8dwf made a video of the repair of a PET 2001. The PET 2001 needed a new daughterboard with RAM and ROM.
2018-04-20 - 13:15:00 - Week: 16 - Item number: 6189 - Category: KIM-1, PET, CBM, Repair
Love Hultén made a tribute to the Commodore PET 2001. The PET De Lux is handmade from American walnut. But it has a modern computer inside, emulating video game systems such as Commodore 64, NES and many more.

A video of the PET De Lux.
2018-03-09 - 13:12:00 - Week: 10 - Item number: 6081 - Category: KIM-1, PET, CBM, Hardware
Iz8dwf made a video of the repair of a Commodore C64 and a Commodore PET 2001. The C64 had a faulty PLA and a bad RAM chip. The PET 2001 needed a new RAM and ROM chip.

Commodore PET 2001
2018-03-02 - 13:18:00 - Week: 9 - Item number: 6066 - Category: KIM-1, PET, CBM, Repair
Tynemouth Software has repaired two Commodore PET computers. The one PET had a couple of bad IC sockets and the other PET had damaged tracks on the circuit board and a bad capacitor.
2018-01-26 - 13:09:00 - Week: 4 - Item number: 5992 - Category: KIM-1, PET, CBM, Repair
Iz8dwf made a video of the repair of a Commodore PET 4032 computer. This time the fault was a ROM and a VIA 6522.
2017-11-10 - 13:15:00 - Week: 45 - Item number: 5816 - Category: KIM-1, PET, CBM, Repair
Iz8dwf made a video of the repair of a Commodore PET 3032 computer with faults in the video generation and a bad MOS-6522 chip.
2017-10-20 - 13:02:00 - Week: 43 - Item number: 5766 - Category: KIM-1, PET, CBM, Repair
Tynemouth Software has repaired a Commodore PET 2001. This time he repaired the digital counter of the Datassette.
2017-10-13 - 13:05:00 - Week: 40 - Item number: 5759 - Category: KIM-1, PET, CBM, Repair
Tynemouth Software has repaired a Commodore PET.This time he repaired the video part by replacing it with a Video RAM replacement board.
2017-09-01 - 13:05:00 - Week: 35 - Item number: 5673 - Category: KIM-1, PET, CBM, Repair
The 8-Bit Guy made a video about cleaning and repairing a Commodore PET computer.
2017-09-01 - 13:01:00 - Week: 35 - Item number: 5669 - Category: KIM-1, PET, CBM, Repair
Tynemouth Software has repaired a Commodore PET 2001.This time one of the 74LS157 multiplexers was the problem.
2017-08-04 - 13:03:00 - Week: 31 - Item number: 5608 - Category: KIM-1, PET, CBM, Repair
Glen Kleinschmidt is working on a clone of a CBM PET-2001. The specifications are: 32 KiB RAM, BASIC#2, WDC65C02N (CPU), WDC65C21N (PIA) and a WDC65C22N (VIA).
2017-07-28 - 13:18:00 - Week: 30 - Item number: 5603 - Category: KIM-1, PET, CBM, Hardware
Steve Gray started a new project for the CBM/PET computers. The Multi-EditorROM is a adapter board that allow you to select any one of 16 different 4K Editor ROMs on a Commodore PET/CBM machine. The Editor ROM is responsible for all screen, keyboard, clock and IRQ processing on BASIC4 PET/CBM computers.
2017-07-14 - 13:10:00 - Week: 27 - Item number: 5574 - Category: KIM-1, PET, CBM, Hardware
Retro Gaming Couch is an YouTube channel for the fans of retro computing. The most recent video is about repairing a Commodore CBM 3016 computer.
2017-06-09 - 13:00:00 - Week: 23 - Item number: 5505 - Category: KIM-1, PET, CBM, Repair
Tynemouth Software has repaired a Commodore 8096. For the repair he used his prototype PET LCD diagnostics board. The fault was in the RAM chips.
2017-04-28 - 13:03:00 - Week: 17 - Item number: 5418 - Category: KIM-1, PET, CBM, Repair
Iz8dwf made a video of the repair of a Commodore PET 3032 computer from the year 1979. The faults were: ROMs, PIA 6520, MC3446 (IEEE488) and two DRAM chips.
2017-02-17 - 13:12:00 - Week: 7 - Item number: 5284 - Category: KIM-1, PET, CBM, Repair
AkBKukU developed an interface that makes it possible to connect a Commodore PET keyboard via USB to a modern PC. AkBKukU uses a Teensy++ for the interface. The source code is available on Github.
2017-02-17 - 13:04:00 - Week: 7 - Item number: 5276 - Category: KIM-1, PET, CBM, Hardware
Adafruit Industries developed a miniature version of the Commodore PET computer. The 9 x 16 LED matrix is combined with the IS31FL3731 and can show many animations. The files for a 3D printer are available.

More information on the Mini Commodore PET.
2016-12-23 - 13:12:00 - Week: 51 - Item number: 5157 - Category: KIM-1, PET, CBM, Hardware
The CGRS MICROTECH PEDISK II was an early floppy disk system for the Commodore PET/CBM computer. The PEDISK did not use the IEEE bus like the Commodore disk drives, but instead used a standard floppy disk controller chip. Members of the 6502.org web page have built a clone of this system.
2016-08-26 - 13:01:00 - Week: 34 - Item number: 4947 - Category: KIM-1, PET, CBM, Hardware
Tynemouth software has developed a new diagnostic system for the PET / CBM computer. The diagnose system is placed in the socket of the 6502 CPU and runs a number of tests.
2016-07-22 - 13:11:00 - Week: 29 - Item number: 4899 - Category: KIM-1, PET, CBM, Hardware
Space Chase is a new game for the Commodore CBM II developed by Christian Krenner. The game is programmed in assembler and has a graphical resolution of 160 x 50. Space Chase is not finished yet, it still contains a few bugs, but it is already fully playable.
2016-06-03 - 13:12:00 - Week: 22 - Item number: 4814 - Category: KIM-1, PET, CBM, Game
NatureAndTech made a video about the Rohde & Schwarz PUC Process Controller. This piece of retro computing is based on the Commodore PET, and is used for control of test equipment using a built-in GPIB controller.
2016-02-12 - 13:06:00 - Week: 6 - Item number: 4590 - Category: KIM-1, PET, CBM, Hardware
Abre los ojos is a new demo from the group oobc for the CBM 8032. The name of the demo "Abre los ojos" means "Open your eyes" in English. The demo reached the first place in the Wild compo at Zoo 2015.
2015-11-13 - 13:12:00 - Week: 46 - Item number: 4434 - Category: KIM-1, PET, CBM, Demo
Tynemouth Software is repairing an Commodore PET 2001-8. After testing the 6550 RAM chips it was discovered that 14 of the 18 chips were defective. Other defective components: ROM, CPU, a transistor for the Datassette, capacitors for the rectifier diodes and a power connector.
2015-11-13 - 13:09:00 - Week: 46 - Item number: 4431 - Category: KIM-1, PET, CBM, Hardware
Stigsworld is doing an restoration of an Commodore CBM 8032 computer. On his videos you can see how to remove the rust, sanding, priming and painting the metal case. He also shows how to install an PET Micro SD and how to remove the monitor.
2015-10-16 - 13:05:00 - Week: 42 - Item number: 4371 - Category: KIM-1, PET, CBM, Hardware
Frank Linde has developed a HiRes card for the CBM 8296-D. The features of the High Resolution Extension (HRE) are: Resolution of 640 x 250 pixels. The CBM video signal and the HRE video signal can be mixed. Control of the HRE through the User Port (POKE). Integration of simple drawing tasks (GPU). You can read all the details on his blog.

YouTube: High Resolution Extension
2015-08-28 - 17:03:00 - Week: 35 - Item number: 4287 - Category: KIM-1, PET, CBM, Hardware
Patrick from dottyflowers.com has scanned the Dutch computer magazines KIM Kenner, 6502 Kenner and µP Kenner. He made the magazines available on his web page last year. Patrick has now converted all the magazines to pdf for easy access.
2015-05-15 - 17:10:00 - Week: 20 - Item number: 4099 - Category: KIM-1, PET, CBM, Magazine
Scott Lawrence made a portable KIM computer. For this KIM-1 he used an old plastic case he picked-up on a hamfest and a display from a surplus store. The computer inside is a Arduino Uno R3 micro board and a Seeed Studio protoshield. You can follow the whole process on his blog.
2015-01-23 - 17:02:00 - Week: 4 - Item number: 3901 - Category: KIM-1, PET, CBM, Hardware
A new episode of the Personal Computing podcast is available. In this episode: Retrochallenge!, Altair 8800b, Wade Ripkowski, Commodore brochures, The Commodore bankruptcy, The Commodore PET 2001, Commodore PET 4032 and the Commodore PET Disk Drive 4040.
2015-01-16 - 17:05:00 - Week: 3 - Item number: 3892 - Category: KIM-1, PET, CBM, Blog
Steve Gray is working on a new project. In 1983 Commodore wanted to sell a CBM-II BX-256-80 / BX-700 machine, but it never happened. Now Steve want to built one himself. The specifications are: CBM-II 710 computer, 8250LP disk drives, 8088 co-processor board and a few extras.
2014-12-05 - 17:20:00 - Week: 49 - Item number: 3816 - Category: KIM-1, PET, CBM, Hardware
Martin Maly has built an online development tool for retro computers. The features are: Code editor, Simulated workspace for your files, Compiling engines for 8080/8085, Z80, 6502, 6800 and 6809 CPU. Embedded emulators for all these CPUs and emulators for PMI-80, PMD-85, JPR-1, ZX Spectrum, KIM-1 and the Grant Searle Single Board computers.
2014-11-21 - 17:10:00 - Week: 47 - Item number: 3790 - Category: KIM-1, PET, CBM, Program
Oscar from Obsolescence Guaranteed made an replica of the Commodore KIM-1. For this project Oscar uses a Arduino Uno and a expansion shield with LEDs and a small keyboard. The project is now finished and is a 10 USD open source KIM-1 mini replica and a 6502 programmable calculator.
2014-10-10 - 17:18:00 - Week: 41 - Item number: 3727 - Category: KIM-1, PET, CBM, Hardware
Oscar from Obsolescence Guaranteed made an replica of the Commodore KIM-1. For this project Oscar uses a Arduino Uno and a expansion shield with LEDs and a small keyboard. The project is a work in progress and the future plans include the emulation of the 6530 timers and a adding 6 times a 7-segment display and a 23 key keyboard.
2014-08-15 - 17:04:00 - Week: 33 - Item number: 3635 - Category: KIM-1, PET, CBM, Hardware
D'Asaro Designs is now producing 6550 RAM adapters for the Commodore PET 2001. The adapter makes it possible to replace a bad 6550 RAM chip with a 2114 RAM chip. Features: Fully functional pin-compatible. Batten and Allen PCB edge pins. Gold-plated machined DIP socket for the 2114 RAM and the necessary 2114 RAM chip is included.
2014-08-08 - 17:22:00 - Week: 32 - Item number: 3631 - Category: KIM-1, PET, CBM, Hardware
Patrick from dottyflowers.com has scanned the Dutch computer magazines KIM Kenner, 6502 Kenner and µP Kenner. The magazines are now available on his web page. The start of KIM Kenner was in 1979 and was continued by 6502 Kenner in 1981. The last years the magazine was know as uP Kenner. The magazine lasted almost 19 years.
2014-03-14 - 17:22:00 - Week: 11 - Item number: 3376 - Category: KIM-1, PET, CBM, Magazine
Jan Derogee has made a video where he demonstrates video on the PET / CBM computers. In his demonstration he uses an CBM 3032 and the Cassiopei. The data for the animation is loaded from the Cassiopei and transformed to PETSCII. The frame rate of the video is about 12 frames/sec.

Another video demonstration on the CBM 3032.
2014-02-13 - 17:20:00 - Week: 7 - Item number: 3327 - Category: KIM-1, PET, CBM, Demo
Chizman made a new game for the Commodore CBM / PET computer. The game is a shooting game controlled with paddles. In 2008 Chizman made this game for the Commodore Plus/4, but this CBM / PET version is more enhanced with speech and music. The game can also be played with the keyboard on a real CBM / PET or with the VICE emulator.
2014-01-10 - 17:16:00 - Week: 2 - Item number: 3265 - Category: KIM-1, PET, CBM, Game
Steve Gray is working on a project to build various Editor ROMs for the Commodore PET/CBM computer models. The Editor ROM is responsible for all video initialization, screen output, keyboard input, full-screen editor and IRQ handling. You can read more about this project on Steve's web page.
2013-12-06 - 17:00:00 - Week: 49 - Item number: 3172 - Category: KIM-1, PET, CBM, Hardware
The Floppydays podcast of last August is about the Commodore PET. In this episode: Better World Books, VCF Midwest, 2013 Chicago TI International World Faire, World Longest Yard Sale, Historically Brewed book, Commodore PET history, Commodore a company on the edge, VICE, CBUG, TPUG, World of Commodore, Terry Stewart, Port Commodore, Edward Shockley's Pets, CBM Pet File Archive and the PET Index at 6502.org.
2013-10-11 - 17:24:00 - Week: 41 - Item number: 3084 - Category: KIM-1, PET, CBM, Blog
Senil Data Systems made a web page about games for the Commodore 8032 computer. On this web page you can find software and games. Senil Data Systems also develops games for the older Commodore computers such as the game Gemäuer von Kalawaum. This game is a conversion from a classic Atari game.
2013-05-03 - 17:08:00 - Week: 18 - Item number: 2801 - Category: KIM-1, PET, CBM, Game
Steve Gray started a new project. He uses a 80 column (monochrome) CBM/PET to display a 40 column screen with colour. A normal 80 column CBM/PET uses two RAM banks for the text. Steve now uses one RAM bank for the text (40 columns) and the other RAM bank for the colour information. You can read all the details on Steve's web page.
2013-04-19 - 17:18:00 - Week: 16 - Item number: 2784 - Category: KIM-1, PET, CBM, Hardware
Mike Johnson (Mr. NOP) released a game for the Commodore PET/CBM 30xx and 40xx models. In the game you must navigate through a maze and collect food. You can change the doors to keep away the predators. Some levels have faster enemy speeds and level 4 has an invisible maze.

Ladybug video on YouTube.
2013-04-12 - 17:12:00 - Week: 15 - Item number: 2771 - Category: KIM-1, PET, CBM, Game
Martijn from Revival Studios released a new game for the Commodore PET/CBM computer. In this game you need to help Wizzy to reach the top of each building. But all the elevators are out of control. The game can be played on all CBM / PET computers except the 2001. The game is available on a real cassette or as an digital download.
2013-04-05 - 17:20:00 - Week: 14 - Item number: 2763 - Category: KIM-1, PET, CBM, Game
Martijn from Revival Studios released a new game for the Commodore PET/CBM computers. In the game your village is under attack and you must go and help. The only way is going down! The game can be played on all CBM / PET computers except the 2001. The game is available on a real cassette or as an digital download.
2013-03-01 - 17:22:00 - Week: 9 - Item number: 2706 - Category: KIM-1, PET, CBM, Game
DomesticHacks is working on restoring an Commodore CBM 8032 computer. The 8032 is equipped with several expansions. In the videos you can see the progress of the repair and how to diagnose the CBM 8032. The videos are in the German language, the music in the videos is from Kevin MacLeod (incompetech.com).

See all the videos of DomesticHacks.
2013-02-22 - 17:12:00 - Week: 8 - Item number: 2690 - Category: KIM-1, PET, CBM, Hardware
Mr. NOP released a new game for the Commodore CBM/ PET. In the game you must drill for oil. But deep under ground all kinds of creatures want to destroy your drilling machine. The game is written in assembler and is available for the PET 2001, CBM 3032 and the CBM 4032.
2013-01-18 - 17:22:00 - Week: 3 - Item number: 2632 - Category: KIM-1, PET, CBM, Game