SBC6120-RetroBrew Computers Edition - KiCAD, Gerber PCBs & Partial IC Kits
Hello VCF DEC group! Recently I've been working on a project to take the SBC6120 design/source files provided by Robert Armstrong on the Spare Time Gizmos website and create a new version of the board....
View ArticleModel 4 without Floppy Drives
I'm pretty new to the world of TRS-80. A while back I purchased a Model 4 in near mint condition. It turned out to be the base model, which did not include disk drives. I'm now looking for options on...
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Any ideas what this ISA card is?
Hello, I've got an (8bit?) ISA card here, any ideas what it is, what it does and where I could get a bracket for it from? The port has 62 pins on it, and I don't even know if it works... thanks in...
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Model II LoTech drivers for Lifeboat CP/M v1.1
This is Version 1.1 of the beta for the Model II - Hans-01 - LoTech - CF Card adapter drivers. Download: Model II Lifeboat CPM 2.25-d LoTech 4 Drivers v1.1.zip This version supports the I/O address...
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More useful version of SUBMIT.COM
Hi Something useful for CP/M hard disk users... maybe! SUBMIT.zip Quote: SUBMIT.COM This version of SUBMIT.COM comes from Montezuma CP/M for the TRS-80 Model IV. It allows you to run SUBMIT from a...
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Newly Acquired IBM 5140
So this past week someone posted a link to a CL ad for a 5140, and I managed to snag it. For $50. As near as I can tell this guy is the original owner and took very good care of the thing. It is in...
View ArticleEaZy PC and DOS
I wanted to make quick work of making a new DOS floppy for this machine this morning but after almost two hours of frustration I have to start asking questions. The original floppy was overwritten and...
View ArticlePowerbook (3400/3500/probably 5300) ATA Failure
There's a longstanding issue with Powerbook 3400s in particular, but I most recently encountered it in my Kanga, in which the ATA bus stops working properly but can sometimes be "jumpstarted" by...
View ArticleWanted: ASUS PCI/E-P54NP4 / EISA Dual Socket 5
Hello, I am looking for an ASUS PCI/E-P54NP4 Dual Socket 5-Mainboard. (Alternatively a similar EISA-Dual Socket 5-Board might be interesting for me.)
View ArticleDate Code for 8267N?
I received 6 8267N ICs a couple weeks ago. Two of them are clearly marked Signetics with a date code of 1974, which is perfect. But i'm wondering about the 4 other ones. On top, they just have 8267N,...
View ArticleHow to read parallel-port POST diagnostic codes?
There are many cheap diagnostic cards available on ebay that read the codes output to port 80h during POST and display them on a standard 7-seg LED. But what if you have a board that outputs to 378h...
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Model II "shaddap-a-ya-face" mod
Hi there! Today I decided to do something about the noisy 8" drive in the Model II. Recall that so far it has a modern 12v power supply running the monitor and a quieter 12v fan. It also uses an Hxc...
View ArticleTandon TM-100A
I now have my latest project, an SD SBC-200 with 8 slot motherboard (from s100computers) with Versafloppy II and Expandoram II up and running (what a mission!). I have a Tandon TM-100A drive that I...
View ArticleParallel Port Headers
I have two parallel port headers that go with AST SixPakPlus and other similar utility cards. Looking to get $11 shipped. ($5 for both, $6 for shipping). PM if interested.
View ArticleFloppy Drive Cables
I have a set of floppy drive cables from a working AT, still in good shape. Also has a cable for the C drive, but no data cable. Looking for $11 shipped ($5 for item, $6 for shipping). PM with interest.
View ArticleWanted: Display for Compaq Evo N600c or N610c
I've got an otherwise mint Compaq Evo N610c laptop with no display (LCD spontaneously cracked while I was transporting it one day). If you have a replacement display to fit it (or an entire laptop with...
View ArticleLooking for disk image for Versafloppy II (and SD SBC-200)
Hi everyone, I'm looking for a disk image (.IMG .DSK .IMD or whatever) for the Versafloppy II card, that I can then (hopefully) turn into a real disk for my SD Systems SBC-200. I've checked in all the...
View ArticleFS: IBM ThinkPad 385xd w/ Win98, OEM AC Adapter, new CMOS battery and manual
Just replaced the CMOS battery. Original IBM software suite. Upgraded to Windows 98. Original AC adapter. Printed off manual from the internet. Pentium 266 MMX cpu. 32MB of memory. Shows two drives (C...
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IBM 5153 (CGA monitor) line voltage range
While investigating ways to convert my North American-procured 5153 from "120 VAC" over to 230 VAC, I noticed the design of the internal switching power supply may not actually preclude handling both...
View ArticleGreetings from portugal! New user here
Hey peeps My name is Aaron, Ive been collecting only a about 2 years or so. From Ireland but living in Portugal Looking forward to getting to know like minded people on this! Aaron :) :)
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