2026


Oct 2 - Oct 4, 2026

Cincinnati, OH

Exhibitors & Vendors


If you would like to exhibit at Tandy Assembly, please get in touch at tandyassembly@gmail.com. Exhibits are open on Saturday and Sunday.


Please include the following information in your email:

  • Your Name or Business Name
  • Your hometown
  • A photo of your exhibit, logo, etc. that we can put on this website.
  • Title of your exhibit
  • Description of your exhibit
  • An optional link to your website

1 or 2 Tables per Exhibitor/Vendor, 72"’ by 30” tables

Maximum 2 people per exhibit


Fees

NOTE: See the Tandy Tech Track page for fees if you plan on attending on Friday.
  • Fri/Sat/Sun: $50, includes one entry fee
  • Sat/Sun only: $30, includes one entry fee
  • Additional $10 entry fee for one additional attendee if sharing a table
  • Additional $25 for a second table.
  • All proceeds pay for the costs of running the event.

Please pay via PayPal to tandyassembly@gmail.com


What or who is an Exhibitor?

An exhibitor is anyone who wants to display a computer, accessory, software, hardware or any other artifact from Tandy Radio Shack computer history. Exhibitors may also be vendors looking to sell their Tandy computing related products or may be hobbyists wanting to display their work for others to enjoy.


Special Note for Vendors

If you are planning to sell items at your table you will need to register as a temporary vendor with the State of Kentucky and pay the appropriate sales taxes by submitting this form to the State of Kentucky. Please note that by law we are required to notify the State of Kentucky that you will be a vendor and subject to sales tax payments.



2026 Registered Exhibitors


Exhibitor: Peter Cetinski

Hometown: New York

Title: Tandy vs IBM: The Model II and the 5150

Website: https://pski.net/category/retro/



The exhibit will showcase a comparison of the TRS-80 Model II computer and the IBM PC 5150 as it was released in August 1981. We will present a detailed case of how the Model II was the superior business computer at the time, well proven with a strong portfolio of business software and superior technical specifications. We will examine how Tandy lost that advantage and why the IBM PC instead became the dominant micro-computer platform.



Exhibitor: Ian Mavric

Hometown: Melbourne, Austrailia

Title: The Right Stuff (TRS)

Website: http://www.frehd.com



FreHD, Hi-Res graphics, Quinnterface, adapters, cables, memory upgrades, kits for the Model I/III/4/Coco.



Exhibitor: Randy Kindig

Hometown: Indianapolis, IN

Title: Floppy Days

Website: http://floppydays.com



A show about all the vintage computers of the late 70’s through the mid-80’s, in the order they were released. Topics: interviews, history, tech specs, modern upgrades, current Web sites, and much more! 13+ years of bringing you vintage computer goodness! Key Interviews (Tandy-related): Steve Leininger & Don French, Ian Mavric, David & Theresa Welsh (wrote “Priming the Pump” book), Boisy Pitre and Bill Loguidice, Peter Bartlett, John Linville and Neil Blanchard, Michael Nadeau. Lots of Tandy coverage, including: CoCo 1/2/3, Tandy Pocket PC’s, TRS-80 Model I/II/III/4/4P, MISE.



Exhibitor: Scott Toenniessen

Hometown: Buzzards Bay / Cape Cod, MA

Title: TRScott

Discord: @svoman



The Biggest Name in Little Computer Collecting - on Cape Cod.



Exhibitor: Scott Ellentuch

Hometown: Newburgh, NY

Title: Tuc's Workbench

Website: https://tucs-workbench.com



Computers, accessories and parts for the vintage computer community. Specializing in TRS-80 Model I/III/4.



Exhibitor: Arno Puder & Matt Boytim

Hometown: San Francisco, CA & Kokomo, IN

Title: More TRS-80 Potpourri

Website: https://github.com/apuder/TRS-IO



Matt and Arno will be showing an assortment of TRS-80 projects and computing devices.



Exhibitor: Jim Brain - RETRO Innovations

Hometown: Iowa

Title: Classic Systems, Contemporary Gear

Website: http://www.go4retro.com



CPU, Memory, and Storage Upgrades for your Tandy Color Computer



Exhibitor: Jeff Birt

Hometown: Woodstock, OH

Title: Hey Birt! What 'cha workin' on?

Website: http://www.youtube.com/c/HeyBirt


The Hey Birt! channel is an electric mix of retro and new tech, hardware and software. Focusing on passing on the repair techniques learned from a lifetime of tinkering.



Exhibitor: WynDec Systems - Paul Fiscarelli

Hometown: Portsmouth, NH

Title: Retro Computer Solutions for the TRS-80 Color Computer

Website: https://www.tindie.com/stores/fiscap0768



WynDec Systems is a producer of retro-computer software and hardware for the vintage computer community. Creators of TRS-80 Color Computer Sprite Compiler, CoCo Floppy Disk Tools, and CoCo Joystick2USB & Keys2USB hardware products. We are also the producers of the Long Branch Never YouTube channel - a video blog to support our products and provide tutorials for the retro community.



Exhibitor: Simon Mccullough

Title: Coco vs the Fujitsu FM-7

Simon is planning a Coco vs the Fujitsu FM-7 exhibit. The FM-7 is a dual 6809 computer sometimes referred to as the "Japanese Coco".



Exhibitor: Mark Marlette

Hometown: Delano, MN

Title: Cloud-9

Website: http://www.cloud9tech.com



Cool stuff for your Color Computer. 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’s goal is pushing the CoCo beyond what it was originally designed to do.



Exhibitor: Matt Massie

Hometown: Ironton, Ohio

Title: 6809 goes Wild on NitrOS-9

Website: https://custom-builtpcs.com


On going work on Wildbits F256K2 and Jr2 with NitrOS-9, GFXDRV, Basic09, and more.


Exhibitor: Michael Hill

Title: Retro Products from the Tech Dungeon

Website: https://techdungeon.xyz



We will have various products and hardware for the Tandy line of computers as well as a mix of 3D printing and design items for sale.



Exhibitor: Mike Rowen

Hometown: Conway, SC

Title: Color Computer


Mike will have an as yet to be determined Color Computer exhibit.


Exhibitor: Mike Loewen

Hometown: State College, PA

Title: Enhanced Model 16B

Website: https://q7.neurotica.com/Oldtech/



This Model 16B had been upgraded with an 8MHz 68000 CPU board and 1MB of RAM, essentially making it a Tandy 6000. It has now been further upgraded with the new MMU-3/7.5MB SRAM board and Real Time Clock module from the Tandy Emeritus group. A FreHD48 hard drive emulator provides storage for the Xenix 3.4 OS on SD cards. Finally, a keyboard adapter from Mark Boytim allows a PS/2 keyboard to be used on the 16B.


Exhibitor: William Athing

Title: CoCo Stuff


William will be sharing his coco work, including some cases for new coco builds (athena) and some fujinet stuff.


Exhibitor: Stephen Frey - Dayton Computer Museum

Hometown: Dayton, OH

Title: Dayton Computer Museum

Website: https://www.dma1.org



Remember those days getting your parts at Radio Shack? We will have a slat board of unopened parts, P-Boxes and a Crystal Radio. See some unique Tandy Radio Shack related computers and accessories from our museum.



Exhibitor: Tim Halloran

Hometown: Pittsburgh, PA

Title: Color Computer Assembly Language

Website: https://github.com/hallorant/bigmit


Tim plans to show off several Color Computer systems set up to develop 6809 assembly. This will allow folks to see live hardware described in the introductory Tech Talk TT104: " Getting Started with Color Computer (6809) Assembly Language". This table will also show the use of Color Computer emulators trs80gp and xRoar on a modern computer as well as productive modern tools such as lwtools and toolshed. These emulators and tools greatly speed up Color Computer software development on reliable modern systems.



Exhibitor: Henry Strickland

Title: Copico Centipede cartridge for the Color Computer

This is a software-defined peripheral device with a RP2350B microcontroller.



Exhibitor: Paul Burrell

Title: TBD



Exhibitor: Eddie Malphrus

Hometown: Windsor, CO

Title: Tandy Showcase

Website: https://tandyshowcase.com



Tandy Showcase will be featuring a collection of systems and projects related to the work of Tandy engineer Jerry Heep, guest speaker at this year's event.



Exhibitor: Eric Canales

Hometown: Chicago, IL

Title: TRS-80 Model 100

Website: http://www.playpi.net



Eric will be displaying a small collection of Model 100 related items.