Sunday, August 30, 2020

TRS-80 Trash Talk Live #7 is Coming on September 26th at 5pm Eastern

Join us on Zoom on September 26th at 5pm Eastern for another live show!  

Link: https://us02web.zoom.us/j/86907465958?wd=a1lLQzFKaGN0dzludU9MWUs2TDhsUT09

In addition to the usual revelry and camaraderie of our typical live show, we'll be having a few special presentations to make up for the lack of Tandy Assembly this year. :(

Arno Puder and Andrew Quinn will be giving a presentation and demonstration of two exciting new TRS-80 projects, TRS-IO-M1 and PocketTRS.   Here are some of the highlights:

TRS-IO-M1:

  • TRS-IO port to the M1
  • Supports all features of TRS-IO (FreHD, RetroStore, trs-nic, etc)
  • Same code base as the TRS-IO MIII
  • Has a 32kB SRAM chip included
  • Auto-boot feature
  • Fully Open Source


PocketTRS:
  • Hardware emulation of a MIII
  • Display via VGA. Color can be set to green, white, or amber
  • Keyboard via PS/2
  • Audio interface can be used for game sound as well as cassette input (500 Baud only)
  • I/O expansion bus emulation: one can connect external cards such as FreHD
  • Has TRS-IO embedded
  • Fully Open Source


Then, Tim Halloran will give us a short demo and progress report on hacking the CHOMRAtrs.

Despite glacial postal service between the US and Australia and chip shortages, a few of the new CHROMAtrs boards from Ian Mavric are working (based on work by Pascal Holdry). You may not know that Robert S French released much of the software (Ira's site) and it is possible to obtain the code and work on it. That's what Tim Halloran has been up to (with help from George Phillips) -- in particular making it easier for cassette-based systems to use the board. 




So mark the date and time and come join us on Zoom.  Everyone is welcome, even fans of other vintage computer platforms.  See you on Zoom!



Friday, August 14, 2020

Episode 37

 These are the show notes for Episode 37 of TRS-80 Trash Talk


Direct Episode Link: http://www.cyberears.com/cybrss/33172.mp3

Show Title

Episode 37 -  A Plethora of TRS-80 Items and Classical Mosquito

Description

In this episode we discuss a whole bunch of TRS-80 accessories and recent acquisitions.  We then talk about the TRS-80 music album "Classical Mosquito" by Robb Murray.  Then we dive into some interesting eBay sales of rare TRS-80 accessories.  We wrap up with a review of the classic TRS-80 programming book "TRS-80 Assembly Language Programming" by William Barden Jr.

Trash Talkers

  • Peter Cetinski
  • Ian Mavric
  • Eric Dittman
  • Aaron Brockbank
  • George Phillips

Main Topics


Tandy Assembly Cancelled for 2020
http://www.tandyassembly.com

Basque Tournament of TRS-80

New Lobo MAX-80 Archive


trs80gp Emulator Updates

Talker/80 now available for the Model III & 4

Tim Halloran’s Haunted House Hacking


Bob Snapp 2MB Boards for the Model 16B/6000


Recent Acquisitions

PT-210 Portable Data Terminal

26-1191 Multipen Plotter


TRS-80 Model 4D Service Manual Addendum

Sealed LS-DOS 6.3.1 upgrade

Apparat Programmer

Original Infocom Witness for the Model 2000

TRS-80 Printer Plotter

Complete VOXBOX



Interesting eBay sales

Monday, June 15, 2020

Episode 36

These are the show notes for Episode 36 of TRS-80 Trash Talk

Direct Episode Link: http://www.cyberears.com/cybrss/33057.mp3

Show Title

Episode 36 - New TRS-80 Accessories and John Elliott IV 

Description

In this episode we discuss a bunch of new add-on accessories for the TRS-80, including new versions of the classic CHROMAtrs and XLR8er boards as well as the new Talker/80 voice synthesizer. We also talk about some big Tandy XENIX news as well as the new z80unit assembly language testing framework.  We review the popular TRS-80 hardware hacking book "Hardware Interfacing with the TRS-80".  Finally, Pete interviews former Tandy software engineer John Elliott IV.

Trash Talkers

  • Peter Cetinski
  • Ian Mavric
  • Eric Dittman
  • Aaron Brockbank

Main Topics

TRS-80 Trash Talk has passed 150,000 Downloads!

Tandy Assembly 2020 Plans
http://www.tandyassembly.com

The XENIX 3.2 Development System and XENIX 3.3 Operating System have been recovered
https://github.com/pski/model2archive/tree/master/Software/Xenix/700-3039%20-%20XENIX%20Multi-User%20Operating%20System/v03.03.00

XLR8er is coming back as 4Cellerator for only $USD149.99! 
http://www.trs-80.org/xlr8er/
http://net.pski.retro.s3.us-east-1.amazonaws.com/TRS80TrashTalk/Episode36/XLR8er.png

ChromaTRS is also coming back!

http://www.trs-80.org/chromatrs/
http://net.pski.retro.s3.us-east-1.amazonaws.com/TRS80TrashTalk/Episode36/CHROMAtrs.png 

Tim Halloran's z80unit
https://github.com/hallorant/bigmit/tree/master/z80unit

Talker/80
https://github.com/lambdamikel/Talker-80

The RCA TV monitor used for the Model I Video Display.
https://www.facebook.com/groups/444560212348840/permalink/1689957987809050/
http://net.pski.retro.s3.us-east-1.amazonaws.com/TRS80TrashTalk/Episode36/rca1.jpg
http://net.pski.retro.s3.us-east-1.amazonaws.com/TRS80TrashTalk/Episode36/rca2.png

Interesting eBay sales

4GA or 4D? 
https://www.ebay.com/itm/WORKING-Radio-shack-Tandy-TRS-80-MODEL-4-IIII-microcomputer-with-dustcover/402270071861?hash=item5da92a2c35:g:F1UAAOSw1d5exwyA

Expensive Cassette?
https://www.ebay.com/itm/Radio-Shack-TRS-80-Computer-Cassette-With-Installed-Program-Original-Owner/173798700486?hash=item287735b5c6:g:8GMAAOSwFstcaZ2o

Book Review

"Hardware Interfacing with the TRS-80" by John E. Uffenbeck
https://archive.org/details/Hardware_Interfacing_with_the_TRS-80_1983_Prentice-Hall

Interview

Pete talks to former Tandy software engineer John Elliott IV








Tuesday, April 7, 2020

Episode 35

These are the show notes for Episode 35 of TRS-80 Trash Talk

Direct Episode Link: http://www.cyberears.com/cybrss/32925.mp3

Show Title

Episode 35 - Surviving the Pandemic with Your TRS-80

Description

In this episode the Trash Talkers discuss the greatest TRS-80 rescue mission of all time as they head to Fort Worth to recover a significant TRS-80 collection. Then, we give you all sorts of ideas on what you can do with your TRS-80 while sequestered away in your home during the current global pandemic.

Trash Talkers

  • Peter Cetinski
  • Ian Mavric
  • Eric Dittman
  • Aaron Brockbank
  • George Phillips

Main Topics

CocoFest is Cancelled :(
http://www.glensideccc.com/cocofest/index.shtml

Updates to George Phillip's trs80gp Emulator
http://48k.ca/trs80gp.html

New Orchestra-80 and Orchestra-85 Replicas by Ian Mavric
http://members.iinet.net.au/~ianmav/trs80/


Recent Acquisitions

Pete and Eric's Great Tandy Rescue

Mav's Coco Rescue from Newcastle, Australia

Aaron's "The Precedent" Legal Accounting System for the Model II


Book Review

"Basic Faster and Better and Other Mysteries" by Lewis Rosenfelder

https://www.classic-computers.org.nz/system-80/books/books_Basic-Faster-and-Better-and-Other-Mysteries-(1981).pdf



Things To Do with Your TRS-80 While at Home

Work on TRS-IO
https://github.com/apuder/TRS-IO
https://github.com/pski/trsnic

Enter the TRS8BIT game competition
http://www.trs-80.org.uk

Build your Tandy Assembly 2020 exhibit
http://www.tandyassembly.com

Watch TRS-80 Videos
https://www.youtube.com/channel/UCPyGtUzQU0Vf7CiSiJLySUg

Write a blog post

Build a CHROMAtrs kit
http://www.trs-80.org/chromatrs/
http://members.iinet.net.au/~ianmav/trs80/

Read old VCF Forum posts
http://www.vcfed.org/forum/forumdisplay.php?46-Tandy-Radio-Shack

Read TRS-80 Books
https://archive.org/search.php?query=TRS-80



Tuesday, December 17, 2019

Episode 34

These are the show notes for Episode 34 of TRS-80 Trash Talk

Direct Episode Link: http://www.cyberears.com/cybrss/32733.mp3

Show Title

Episode 34 - News and Dennis Bathory-Kitsz

Description

In this episode we cover some news, like the release of TRS-Box with TCP/IP support, the newest TRS8BIT newsletter and serial mouse support for the Model 4.  Then we discuss a bunch of new acquisitions, including a MTI Mod III Plus hot rodded Model III and a Rochester Data Dynatyper.  Finally, in the main segment, Pete interviews Dennis B├íthory-Kitsz, the author of the fantastic "The Custom TRS-80" book and all-around renaissance man.

Trash Talkers

  • Peter Cetinski
  • Ian Mavric
  • Eric Dittman
  • Aaron Brockbank

Interview

Pete interviews Dennis Bathory-Kitsz


Main Topics


TRS-Box with TCP/IP Support

TRS-Box now works with the trsnic TCP/IP stack in the TRS-IO card!

http://pski.net/trs-box/

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


https://github.com/pski/trsnic


December Issue of TRS8BIT

http://www.trs-80.org.uk


Model 4 Serial Mouse


MTI Mod III Plus 280

http://net.pski.retro.s3.us-east-1.amazonaws.com/TRS80TrashTalk/Episode34/80micro_1982_02_modiii_ad.jpg

http://net.pski.retro.s3.us-east- 1.amazonaws.com/TRS80TrashTalk/Episode34/80micro_1982_12_modiii_ad.jpg

http://net.pski.retro.s3.us-east-1.amazonaws.com/TRS80TrashTalk/Episode34/80micro_1982_08_modiii_ad.JPG

http://www.trs-80.org/hurricane-labs-compactor/


Rochester Data Dynatyper

https://www.computerhistory.org/collections/catalog/X914.88

http://net.pski.retro.s3.us-east-1.amazonaws.com/TRS80TrashTalk/Episode34/Interface_Age_Vol_6_Issue_6_1981-06_Interface_Age_US.pdf

https://books.google.com/books?id=mT4EAAAAMBAJ&pg=PT26&lpg=PT26&dq=rochester+data+dynatyper&source=bl&ots=zqdAd-QEcc&sig=ACfU3U006G-J9rgg3WHNRke9FfdMhUxifg&hl=en&sa=X&ved=2ahUKEwjY6v7ev6HmAhVqxFkKHYk3DZIQ6AEwAXoECAwQAQ#v=onepage&q=rochester%20data%20dynatyper&f=false

https://www.ebay.com/itm/TRS-80-Cool-Accessory-Dynatyper-from-Rochester-Data-circa-1980-/362817034832?_trksid=p2047675.l2557&ssPageName=STRK%3AMEBIDX%3AIT&nma=true&si=J8%252FuBoSnkQsKY%252BNH8qKyP0IX8vw%253D&orig_cvip=true&nordt=true&rt=nc


The Cinematographers' Computer Program for the TRS-80 Model 100

https://www.in70mm.com/news/2015/samuelson/images/WP_20141115_011.jpg


Infocom's “Hitchhiker’s Guide to the Galaxy” for the Model III/4

https://en.wikipedia.org/wiki/The_Hitchhiker%27s_Guide_to_the_Galaxy_(video_game)


Montezuma Micro CP/M for the Model 4

http://www.classiccmp.org/cpmarchives/trs80/mirrors/pilot.ucdavis.edu/davidk/documentation/99-0014.htm


A Very Prescient Article

http://net.pski.retro.s3.us-east-1.amazonaws.com/TRS80TrashTalk/Episode34/80-US%20Journal%20-%20Jan%201983%20Editorial.pdf


Thursday, November 7, 2019

Episode 33

These are the show notes for Episode 33 of TRS-80 Trash Talk

Direct Episode Link: http://www.cyberears.com/cybrss/32645.mp3

Show Title

Episode 33 - The TRS-80 Model 100

Description

In this episode we review Tandy Assembly 2019.  There were lots of additions to the show this year including the new Tech Track.  What worked well and what worked not so well?  There's the usual segments on new projects, new acquisitions, listener feedback and the book review.  We talk about JetSet which is a flight simulator for the TRS-80 Model II!  There's some discussion about ARCNET, CP/M Plus and floppy disk baking.  Then, in our main segment, we talk to TRS-80 Model 100 enthusiast Josh Malone.  Josh gives us a great overview and then a detailed rundown of this most famous portable computer.

Trash Talkers

  • Peter Cetinski
  • Ian Mavric
  • Eric Dittman
  • Aaron Brockbank
  • Josh Malone
  • Randy Kindig

Main Topics


Tandy Assembly 2019
http://www.tandyassembly.com
https://www.youtube.com/channel/UCPyGtUzQU0Vf7CiSiJLySUg

ARCNET
http://pski.net/2019/11/03/tandy-model-ii-arcnet-software-archive/

Tuesday, August 13, 2019

Episode 32

These are the show notes for Episode 32 of TRS-80 Trash Talk

Direct Episode Link: http://www.cyberears.com/cybrss/32466.mp3

Show Title

Episode 32 - Tandy Assembly 2019 Preview and Buzz Murphy

Description

In this episode we start by previewing the upcoming Tandy Assembly 2019.  We have a lot of big news to relate regarding the 3rd annual gathering of Tandy Radio Shack computing enthusiasts in Springfield, Ohio.  We also discuss a new document archiving project of original Radio Shack Customer Service Bulletins.  There's the usual segments on new projects, new acquisitions, listener feedback and the book review.  We then try to decide what do you do with a wall of Model I Video Displays.  Finally, in our interview segment, Pete talks to Tandy Radio Shack marketing executive Buzz Murphy.  Buzz relates his experience at the company while riding the incredible wave that was created by the original TRS-80 microcomputer release in 1977.

Trash Talkers

  • Peter Cetinski
  • Ian Mavric
  • Eric Dittman
  • Aaron Brockbank

Commercials

  • Mike Rowen

Main Topics


Tandy Assembly 2019
  • September 28 & 29 in Springfield, Ohio
  • Courtyard by Marriott Springfield Downtown
  • http://www.tandyassembly.com
  • We review all of the speakers, tech classes and registered exhibits

Trash Talk passes 100,000 Downloads
Big thanks to our listeners!


Mav's New Projects
  • Speed up kit (gas pedal) for Model I available soon (Holmes Sprinter 1L repro) and 
  • Restorer’s/Repairer’s Diags disks set for Model III/4/4P/4D


Radio Shack Customer Service Bulletins Archive Project

Ira and Pete worked on this for a month to scan and restore a collection of original Radio Shack Customer Service Bulletins.
https://github.com/pski/model2archive/tree/master/Documents/Customer%20Service%20Bulletins


TRS-80 Model 2/12/16/6000 LS-DOS Scroll Protect working after 35 Years.

After attempting to port Zork from the Model 4 and discovering a problem with LS-DOS going all the way back to the 6.2.0AH Beta, Aaron has been working on fixing this. Getting the patch to play nice in the little space left for it was interesting.


TRS-80 Model 16 for Midwest Computer Museum

Pete has been getting a Model 16 working for the museum.  Will bring it to Tandy Assembly.
http://www.vcfed.org/forum/showthread.php?56212-Tandon-TM848-2-fuse


TRS-80 Model I for the TA Auction

Pete spent some time fixing lots of issues with a full Model I system.
https://youtu.be/5kwSHWScWD4


Recent Acquisitions

Mav's consignment of Mod 1 gear found in Werribee and consignment of Sinclair ZX Spectrum gear found in Diamond Creek, both in Melbourne. 


New TRS-80 Model 12/16B/6000 dust cover
https://www.ebay.com/itm/Vintage-TANDY-Computer-Dust-Cover-Model-12-16B-6000-NEW-NOS/383063725391


Model I Video Display Wall

Pete is soliciting ideas for what do you do with a 3x3 wall of Model I Video Displays
https://twitter.com/TRS80TrashTalk/status/1146778915651956737?s=17


Book Review

"Coco: The Colorful History of Tandy's Underdog Computer" by Boisey Pitre and Bill Loguidice
https://www.amazon.com/CoCo-Boisy-G-Pitre-dp-1466592478/dp/1466592478



Interview


Buzz Murphy


Pete interviews former Tandy Radio Shack Marketing Manager Buzz Murphy. Buzz Murphy worked for Tandy Radio Shack in the late 1970s and early 1980s. He joined the company just before the TRS-80 was introduced so he was able to participate in one of the great success stories of the early personal computer era…the TRS-80 Model I. Buzz was a computer marketing expert and divisional manager at Radio Shack Computer Centers and so he offers a different perspective of the TRS-80 story from what you may have heard before.