Trash-Eighty
Experienced Member
I'm offering for sale an original BASIC Level 1 ROM (1ea IC Motorola BASIC 1 ROM) and 4kB RAM (8ea ICs Motorola 3108003) manufactured 1978 for the TRS-80 Model I.
Bought a few years ago and never used them. The plan was to upgrade a Model I Level 2 with the additional Level 1-BASIC so that both BASICs can be used alternatively. But I never found a Model I for purchase to do the modification. Therefore I can't say anything about the functionality of this kit and the modification instructions (see link below).
Sold as is without any warranty. All items are sold together as a kit only. The kit's location is Germany. The price is 100 Euros plus shipping charges (worldwide). Money transaction fees are buyer's subject.
More Information about the Level 1 BASIC:
http://www.trs-80.org/level-1-basic/
TRS-80 Model 1 with both Level 1 and 2 ROMs installed:
https://www.youtube.com/watch?v=dYkfu1BymFY
Download BASIC programming reference manual for Level 1 BASIC
(Level 1 Users Manual (1977)(David Lien)(pdf).zip)
http://akhara.com/trs-80/docs/model1/
Two BASICs are Better Than One
Two-level ROM (Level 1 & 2 BASIC capability and modification instructions)
80micro 1980-10 p.182
https://archive.org/stream/80-micro...0-10/80Microcomputing_1080#page/n181/mode/1up
If you are interested please send me a PM.
-Rainer
Bought a few years ago and never used them. The plan was to upgrade a Model I Level 2 with the additional Level 1-BASIC so that both BASICs can be used alternatively. But I never found a Model I for purchase to do the modification. Therefore I can't say anything about the functionality of this kit and the modification instructions (see link below).
Sold as is without any warranty. All items are sold together as a kit only. The kit's location is Germany. The price is 100 Euros plus shipping charges (worldwide). Money transaction fees are buyer's subject.
More Information about the Level 1 BASIC:
http://www.trs-80.org/level-1-basic/
TRS-80 Model 1 with both Level 1 and 2 ROMs installed:
https://www.youtube.com/watch?v=dYkfu1BymFY
Download BASIC programming reference manual for Level 1 BASIC
(Level 1 Users Manual (1977)(David Lien)(pdf).zip)
http://akhara.com/trs-80/docs/model1/
Two BASICs are Better Than One
Two-level ROM (Level 1 & 2 BASIC capability and modification instructions)
80micro 1980-10 p.182
https://archive.org/stream/80-micro...0-10/80Microcomputing_1080#page/n181/mode/1up
If you are interested please send me a PM.
-Rainer
