The Shareware PLUS Commodore 64 & 128 Blog

  Commodore 64 SID Symphony II/ SID CART for MOS 6581 SID Chip 6581 SID Chip is NOT Included - Cartridge PCB as shown. The SID Symphony II can be mapped into any 32-byte slot from $DE00 to $DFE0, and should be work fine alongside most other hardware expansions. Works with all stereo-aware software that can address a SID in the above range. It is possible to add a jumper to the cartridge to pick up other page address signals inside the computer (such as $D7xx in the C128). Each board features an access LED, reset button, and a proper 12v DC-to-DC converter for use with the good old 6581 SID chip. Each board comes preset for $DE00, which can be changed by flipping one or more DIP switches. The audio-in line is grounded by default to reduce background noise, which one can undo by simply cutting a jumper pad. The SID Symphony II is supplied without a SID chip, and is designed to fit into standard Commodore-issue case shells and their clones. Available from stock £34 plus postage. Simpl...

MultiMax is the ultimate cartridge for Commodore MAX Machine (also known as Commodore Ultimax) game console.  It contains all 24 software titles ever released by Commodore many with multiple versions, all selectable from a power-on menu. You can also use this cartridge on the Commodore 64 (all variants including SX-64) and the Commodore 128 computers. MultiMax Cartridge Includes the following games - Avenger Max V1, Avenger Max V2, Avenger c64, Billiards V1, Billiards V2, Bowling, Clowns V1, Clowns V2, Gorf, Jupiter Lander V1, Jupiter Lander V2, Kickman Max, Kickman C64, Le Mans, Max Basic, Mini Basic, Mole Attack, Money Wars, Music Composer, Music Machine, Omega Race V2, Omega Race V3, Pinball, Radar Rat Race 2a, Radar Rat Race 2b, Radar Rat Race 2c, Road Race V1, Road Race V2, Sea Wolf, Slalom, Speed/Bingo Math, Super Alien, Visible Solar System, Wizard Of Wor v1, & Wizard Of Wor V2. Use your joystick, or keyboard (Followed by SPACE or RETURN Key) to select the game you would...

C64 Replacement RF Modulator Design by Matt Barszcz The C64 RF Modulator replacement based on the schematics of similar designs like Zero-X/OMS's Modified Commodore RF Modulator Design and JMP$FCE2's S-Video only design. This board can be used to replace a damaged or defective RF modulator in your C64, to improve the sharpness of your video output, or as a modern solution to replace the composite/luma/chroma output functionality of the original modulator on new motherboards such as the SixtyClone or Bwack’s KU-14194. This design has a few goals that set it apart from the others - • It is a universal solution that fits and is electrically compatible with both the C64 and C64C without having to change components on the board or run jumper wires for power. • It is easy and inexpensive to build with only a single, small PCB and all through-hole components. • It provides high quality S-Video (Y/C) output while maintaining composite video output for compatibility. • It provides adjus...

CD 64 Interface & 1st Edition Games Pack by Rainbow Arts We have had several requests for these so we have made a small production run. These are now in stock and include the games on CD, Instruction sheet and interface. The CD64 contains - 1. Start menu, 2. David's Midnight Magic (Broderbund, flipper), 3. Dropzone (U.S.Gold, action), 4. Fist II - The Legend Continues (Melbourne House), 5. Impossible Mission (Epyx, action), 6-7. Jinks (Rainbow Arts), 8. Leaderboard Golf (Access, golf simulation), 9. Loderunner (Broderbund, jump&run), 10 & 11. M.U.L.E. (Electronic Arts), 12. Mission Elevator (Softgold, action), 13. Solomon's Key (U.S. Gold), 14 to 20. Music pieces by Chris Hülsbeck, 21 to 33. Repetition of tracks 1 to 13. CD64 Pack is £18 plus postage. For more information please email sales@sharewareplus.com Updated 1st January 2025

We have taken the opportunity to restock the RGBI to RGBA Adapter for the 8200 series JAMMA boards. We have changed from 1/4 watt to 1/8 Watt resistors which make the build a lot nicer and the profile smaller. Here is the info on the board - "...I've been working on an adapter to connect a C128's 80 column video port directly to a video-game-to-VGA upscaler board such as the GBS-8200 or 8220 (i.e. ones sometimes called "JAMMA" boards). The C128 produces digital RGBIHV output pretty much identical to the old CGA video standard, while some of those upscaler devices require analogue RGB signals (without a separate intensity signal), and composite H+V sync. This board seeks to address this mismatch. My intent here is to reasonably duplicate the standard C128/CGA palette as described in the article on Wikipedia, including a suitable "brown fix" circuit. At one end is the C128 video port connection. At the other end is a row of five holes to receive the wires...

  It was 2014 when we last made these, we have now made another small batch to restock and they are now available. Cost £16 plus postage. Simply email sales@sharewareplus.com for more information. We have had the adjustment rod professionally milled/ manufactured in brass and these are now available with the knob for £6. A special thank you to Frederic (e5frog) who has recreated the plastic support, these are now available, with three m2 15mm screws, they are £5 each. Updated 1st January 2025 The wires are soldered as shown, if you have a different PCB let me know and I will send you the alternative soldering points.

 multicart IV- Greatest Games Collection Cartridge For The Commodore 64 MULTICART IV - Greatest Games Collection Cartridge For The Commodore 64!  multicart IV contains - Archon, Arkanoid, Barbarian, Beach Head, Bruce Lee, Bubble Bobble, Chuckie Egg, Commando, Donkey Kong, Eagle Empire, Elite, Forbidden Forest, Fort Apocalypse, Hero, Impossible Mission, International Karate, Jumpman Junior, Jupiter Lander, Le Mans, Lode Runner, Mega Phoenix, Miner_2049'er, Operation Swordfish, Operation Wolf, Pac-Man, Paradroid, Pitstop, Roulder Dash,  Sea Wolf, Sentinel, Space Invaders, Sword of Fargoal, Telengard Mayday, Tetris & Wizard of Wor.  SPECIAL THANKS TO - Aleksandar Marić Some programs are for PAL or NTSC only, contents may vary slightly. multicart IV are £20 each. Email sales@sharewareplus.com with any questions or to order. Updated 1st January 2025