Model 3 or 4 USB Keyboard

Kyle Wadsten has released his interface boards for the Model 3 and 4 that allow plugging in modern keyboards into the classic TRS-80 Model 3 & 4 machines.

There are two different board designs, one for USB keyboards and another for PS/2 input. 

What I find very intriguing and helpful is the ability to use the existing keyboard along with a modern keyboard at the same time.

Check out more at his order page or on the Facebook announcement page at the links below:

Kyle Wadsten’s NEWKEY/80 Arduino and custom board allow for a modern keyboards on your Model 3 & IV machines.

December 6, 2018 – New Magazine and Video

• This Week in TRS-80 – December 3rd
• View here.
  • Model III/4 contrast and brightness controls
  • Orchestra 90 for the Model III/4
  • Serial port for the Model I

• TRS8Bit – December 2018
• Download here.
  • TRS-Image
  • Travelling Mav – A review of TA 2018
  • Christmas Wishes
  • Mavs Workshop – Model I Power Supply
  • Obituary – Paul Allen
  • Pick 2
  • The Great Snail Race – One Liner
  • In Mav’s Workshop – Daisy Wheel Printers
  • Flower Power – BASIC Program by George Philips
  • In Mav’s Workshop – 2019 Developments
  • Software Review – TBA (The BASIC Answer)

September 7, 2018 – Updated TRS-80 Emulator

George and Peter Phillips have released trs80gp version 2.0.4.

It features:
* Model II emulation (and Model I, III and 4 as previously)
* Hires graphics support
* Floppy and Cassette emulation
* Copy/Paste
* Software Keyboard
* Automatic keyboard input
* Turbo Mode
* Source-level debugging and many other programming features

It runs on Windows 10, 8, 7 and maybe even XP and Vista. Runs well under Wine on Mac and Linux

Learn more and get it at

September 6, 2018 – New Issue of TRS8Bit

Dusty has released the June 2018 issue of the TRS8Bit newsletter on the download page of his web site.


PAGE 04 Competition Entries and Result
PAGE 07 TRS80 GP v2.0.4 now released
PAGE 08 In Mav’s Workshop (DOM Cards)
PAGE 13 Palindromes – Do Geese See God
PAGE 15 In Mav’s Workshop (Tandy Assembly)
PAGE 21 The Way We Were – Two Chess Programs / LDOS
PAGE 37 In Mavs Workshop – Extender Boards
PAGE 43 EBAY U.K. Bargains
PAGE 46 In Mav’s Workshop – Printers – Part 6