CoCoFEST! Past Vendors

The most up to date list of Vendors and the vendor map may be viewed on TandyList.

Dave’s Hobbies


Boyson was the nickname given to Richard Lorbieski by his co-workers back in 1981 when he first went to work at Tandy Computer Assembly at the age of 17. He left Tandy/Radio Shack as a Computer Repair Manager in 1986.

BoysonTech plans to sell several products including the Coco to Atari joystick adapter, CoCo3 Boomerang 512K board, and the RGB-SCART cable.

He will also perform onsite repair and upgrades for the CoCo 1, 2, and 3.

Retro Innovations


Eric Canales

WynDec Systems

John Mark Mobley

Evan Wright

Evan Wright is the author of the Flood It! and Hunt the Wumpus cartridges for the CoCo. He will be demonstrating his latest game and his text-adventure development system which can export adventure games to the CoCo and many other classic platforms. In his “spare time”, he’s a high-school computer science teacher just down the road from CoCoFest, where he’s managed to make text-adventures and floppy disks part of the curriculum.

Rick Adams

Rick Adams is the author of Tandy’s Temple of ROM and Shanghai games, as well as his new game Bomb Threat. Rick will be showing off his CocoPI3 development setup, autographing his games, watching you play them, and/or working on his next game in his copious spare time.

Color Computer Store

Tandy Radio Shack TRS-80 Color Computer online store featuring software, hardware, parts, games and more for the CoCo.


The Phreakshow Telephone Company

Scott Wendt


Since 1994, Cloud-9 has been in the business of developing and marketing cool hardware and software products for users of the Radio Shack TRS-80 Color Computer 1, Color Computer 2 and Tandy Color Computer 3. The company is made up of a couple of guys who get a kick pushing the CoCo beyond what it was originally designed to do.

Retro Tinker

Ron Klein

Brett Gordon

R&B Computers

Lost Wizard Enterprises

This is the operation responsible for inflicting lwtools on the world. Bring your questions, comments, and complaints about lwtools. Or just stop in for a chat about 6809 assembly programming. Or other things.


Brendan Donahe will be demonstrating the Color Computer VGA enhancement, CoCoVGA, and new software which takes advantage of it. If he has CoCoVGA kits in stock, they will be for sale. Brendan’s daughter, Morgan, will be showing some of her BASIC programs as well.

NCS Inc.

Neil will be offering for sale the SEGA Genesis Joypad adapter for CoCo3, an adapter for using Atari, SEGA SMS, and SEGA Genesis joysticks and joypads with your CoCo. (All CoCo machines are supported, but the extra buttons only work on the CoCo3.)

Neil is also part of the Retro Tinker team.

Zytek Ltd

MDO Consulting, LLC


Nitros 9 EOU

The NitrOS-9 Ease of Use project will be showcasing the latest 6809 and 6309 builds of NitrOS-9:Ease of Use (EOU) pre-packaged hard drive images, with pre-installed software and games all easily accessible from the MultiVue GUI. It also includes speed and feature enhancements, and bug fixes, that can be run in VCC, MAME, CocoFPGA, Matchbox Coco, and real hardware. We will be taking questions, and may hold a talk about future plans as well.

The Tandy Shack


D. Bruce Moore

Coco Brothers Software

Consisting of Tim and Paul Thayer! They develop random pieces of software as well as bring an overall enthusiasm and love for the Coco! Mostly Coco 3, but they admire the other 2 as well.


As seen at Pennfest 99 & 2000, CoCoFEST! 2018-2019 and Tandy Assembly 2018-2019.

The Switch-a-roo Color Computer 3 RGB To SCART video solution, easily switch from RGB to Composite (for artifact colors) with just a flip of a switch. Also available the WallabY-cable dual RGB cable, connect two RGB displays to your Coco 3. Plus other items for your CoCo.

Bargeman Research

Can Ken Make it?


Terry Steen/Steen Co. ;D

BDS Software

Music Man

The Music Man, Brian Schubring has provided music and A/V assistance to CoCoFEST! for years and this year he”ll be at it again!

CoCo Call for Papers

Do you have an idea for a technical paper that could benefit the CoCo community? Then you are welcome to submit a paper proposal to Annual “Last” Chicago CoCoFEST!

Some ideas for a technical paper might include:

– A new idea for software or hardware that would benefit CoCo users
– An improvement upon an existing software or hardware approach
– An improvement upon a process such as software development