bsittler
bsittler.bsky.social
bsittler
@bsittler.bsky.social
interested in many things, including computers both new and old; find some of my other stuff at https://www.google.com/search?q=bsittler
Reposted by bsittler
New blog post! I'm tired of my TRS-80 Colour Computer needing an old school RF connection to get video out. How about crudely jamming in a composite mod from an *entirely different* obscure computer? That'll work. #coco #trs80 #retrocomputing www.leadedsolder.com/2025/07/15/t...
CoCo1 composite video
When I got the CoCo, one of the big problems was the super-smeary, snowy video on the RF-out. Even though composite video is generated internally by the video circuitry of the computer, Tandy didn’t e...
www.leadedsolder.com
July 15, 2025 at 3:08 PM
Reposted by bsittler
New blog post! Hey kids. Have you ever wanted to display the Impressionist masters on your NEC PC-6001 home computer system? Apparently I have. Let's learn some Z80 assembly and, more importantly, how the PC-6001 graphics work. #retrocomputing #pc6001 #z80

www.leadedsolder.com/2025/06/24/p...
Assembling the PC-6001
A PC-6001 ROM cartridge is made that displays Claude Monet’s “Meules” impressionist painting on the screen. Z80 assembly language and the memory map of the 6847 video controller are discussed.
www.leadedsolder.com
June 24, 2025 at 3:06 PM
I listed my (new+unopened) ZX Spectrum Next Accelerated Issue 2 on eBay as I have never even opened the box. Hopefully it will find an appreciative new home! www.ebay.com/itm/20535341...
March 14, 2025 at 6:00 PM
I just listed a blue MSXVR Virtualizer on eBay. It's a one-week auction with the winning buyer paying shipping as calculated by eBay. The computer works well, I just have not been using it often enough to justify the space it needs. www.ebay.com/itm/20525316...
Blue MSXVR Virtualizer Computer w/box, manual, Leicke power supply & cables; MSX | eBay
This computer works well but I find I don't use it often enough to justify keeping it. I believe this blue case is a "special" color which is not currently available from the manufacturer. There are a...
www.ebay.com
January 29, 2025 at 7:12 AM
Reposted by bsittler
PSA: If you have a system with Windows 9x and it has the Windows Update dir (C:\Program Files or A:\ on the #PC98), ESPECIALLY if it is not in the EN language, please back these up as the WU Restored project is seeking these (share them to MSFN/the Discord)
#retrocomputing
windowsupdaterestored.com
January 22, 2025 at 12:46 AM
Reposted by bsittler
New blog post! Mechanical keyboards are great, so why not add one to my battered CoCo1? I'll tell you why: it's fiddly! But it's also fun.

#trs80 #coco #retocomputing www.leadedsolder.com/2025/01/07/c...
Building my own mechanical keyboard for the CoCo 1
Design and construction of a mechanical keyboard using Gateron key switches for the Tandy TRS-80 Color Computer Model 1, including bodges and mounting gaskets.
www.leadedsolder.com
January 7, 2025 at 4:54 PM
Reposted by bsittler
My first floppy disk cleaning tutorial is now up on YouTube :D :D Hope you like it!! (If you do, pls share it to your friends :D) youtu.be/H4gb4-wORa0 #retrogaming #vintagepc #msdos
How to Desleeve a 5 25" Floppy Disk
YouTube video by krugman
youtu.be
December 3, 2024 at 8:48 PM
Looks like floppy disk cleaning for data recovery just got a whole lot better documented! #💾 youtu.be/H4gb4-wORa0 krugman.net/dumping/ ty @krugman.net !
How to Desleeve a 5 25" Floppy Disk
YouTube video by krugman
youtu.be
December 3, 2024 at 9:16 PM
Over on a different site I wrote a bit about getting the #EXAS BASIC Compiler and its Runtime Package working without a PC-6006 RAM/ROM cartridge, using just OCR'ed magazine type-ins, emulators, and a new loader. It makes these great old tools a bit more accessible mastodon.social/@bsittler/11...
bsittler (@bsittler@mastodon.social)
Attached: 4 images I used Compac's PC-6001 type-in EXAS BASIC compiler and runtime package from I/O magazine 1982-11 (errata in 1982-12) and runtime package (in 1983-02). I added a compiled+packaged ...
mastodon.social
December 1, 2024 at 4:29 AM
@mills5.bsky.social any idea where the 1-second voice snippet at the end of Side B of the PC-6001/mkII / PC-6601 release of T&ESoft's Trick Boy might originate, and/or what it might mean? It's where I expected to see a short low-frequency pulse indicating end of side mega.nz/file/u7oXxBr...
November 27, 2024 at 4:29 AM