TRS 80 Model III

TRS 80 Model III ( Model Number: 26-1062) - 02
The model 3 is generally regarded as the successor to the Model 1.
Its two 5.25" floppy disk drives can convert model 1 disks. 

However, It wasn't FULLY compatible with the model 1.
There were differences in ROM which meant some programs had to be converted,
especially those machine language ones that made ROM calls. 


Manufacturer Tandy Radio Shack Name TRS 80 Model III
Type Homecomputer Origine USA
Introduction Date 1981 End of production ???
Built in Language ??? Keyboard Full-stroke keyboard with separated numeric keypad
CPU Zilog Z80 Speed 2,03 Mhz
Coprocessor ??? Amount of Ram 16 Kb (up to 48 Kb)
Vram ??? Rom 14 kb
Text Modes 32 x 16, 64 x 16 Graphic Modes ???
Colors monochrom Sound ???
Size / Weight ??? Built in Media Zero, one or two 5.25" disk-drives
I/O Ports Tape (500 or 1500 bauds), Centronics, RS232 OS TRS DOS (other OSes were available : New DOS, LDOS, MultiDOS, ...)
Power Supply Internal Introduction Price No disk model : AU$1450 (Australia, 1981)
Sold ??? Serial Number 000352
Other Extras None Bought Where Schepdaal
Bought When July 11, 2002 Condition Unable to test (monitor)
Price Paid - Specs of my Model -
Setup Today ???

Left (total) view The original Dust Covers

Maintenance Problem with the Monitor

Inside the TRS80-Model III A view on the damaged monitor clamps

Closer look on the monitor The Motherboard

The Motherboard

Bottom view Serial Number

TRS 80 Model III-02:

Bought in Schepdaal (Brussels), together with lots of other stuff on 11/07/2002.

This is a list of the things I bought in Schepdaal:

Tandy TRS80 Model III 16Kb RAM
Tandy TRS80 Coco2 16Kb Ram (26-3026)
Tandy TRS80 Coco2 64Kb Ram (26-3003B)
Tandy multi pak interface
Double disk drive and lots of diskettes
Datasette with lots of cassettes
Lots of cartridges
2 Tandy Deluxe and 1 other joystick
Tandy Mouse
2 Self made kits (80 column screen and disk drive interface)
Videopac G7000
26 Videopacs
C7010 Chess Module
C7420 Home Computer Module
Some Manuals

Paid 100Ä

Actually this collection was a tip from the guy in Wervik,
he didnít have the time to go to Schepdaal and so we made a deal.

I would buy the stuff and give him the Videopac with the games.

One problem though: the videopac didnít work, I gave him one of mine
and I got a Tandy TRS80 200 Laptop.

Good Guy !

When I unpacked everything I noticed I didnít got the Chess 
and Home Computer Module.

I collected them on 15/07/2002