Rob Clarke has made a video about the Commodore PET 4010 Voice Response Unit. This device was developed for the Commodore PET/CBM computer by the Votrax corporation.

Chuck Hutchins has made a video about troubleshooting and repairing a Commodore 2031 disk drive.

The guy old made a video of a rare hardware expansion for the Commodore PET/CBM computer. The HAL PCG-6500 is a graphics board with aprogrammable character set generator and a sound device.

Tynemouth Software has repaired a Commodore PET 8032 computer. This time the problem was the video and a ROM.

Iz8dwf made a video of the repair of a Commodore 3040 disk drive. This time the speed controller of the diskette motor was defective.

Iz8dwf made a video of the repair of a PET 2001. This time he cleaned the Datassette and the keyboard.

Glen Kleinschmidt has built a clone of a CBM PET-2001. The specifications are: 32 KiB RAM, BASIC#2, WDC65C02N (CPU), WDC65C21N (PIA) and a WDC65C22N (VIA).

Tynemouth Software has developed a IEEE-448 port tester for the Commodore CBM/PET computers.

Chuck Hutchins made a video about repairing a PET 8032 Business keyboard. He cleaned the contacts, checked the resistances and repaired a broken circuit trace.

Iz8dwf made a video of the repair of a PET 2001. The PET 2001 needed new 6550 and 6540 IC's.

The Software Library: Commodore PET is a collection of software for the Commodore PET. At the moment the collection contains 339 programs and games.

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.

Galb2x2 made a video about recovering a cassette tape for the Commodore PET computer. He uses a C2N Datasette and an Arduino.

Dave Bradley made a video about the repair of a Commodore Super PET.

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.

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).

Iz8dwf made a video of the repair of a PET 2001. The PET 2001 needed a new daughterboard with RAM and ROM.

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.

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

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.

Iz8dwf made a video of the repair of a Commodore PET 4032 computer. This time the fault was a ROM and a VIA 6522.

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.

Tynemouth Software has repaired a Commodore PET 2001. This time he repaired the digital counter of the Datassette.

Tynemouth Software has repaired a Commodore PET.This time he repaired the video part by replacing it with a Video RAM replacement board.

The 8-Bit Guy made a video about cleaning and repairing a Commodore PET computer.

Tynemouth Software has repaired a Commodore PET 2001.This time one of the 74LS157 multiplexers was the problem.

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).

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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

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.

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.

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.

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.

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.

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.

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.

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.

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.