Overview
The Commodore PET 2001 circuit board 050 20497 is a vintage system motherboard engineered for the iconic Commodore PET 2001 personal computer, one of the first fully integrated desktop systems released in the late 1970s. This circuit board represents authentic Commodore-era design and is essential for anyone restoring or assembling an original PET 2001 machine. Arriving in new, open-box condition, this board is ready for integration into a complete system.
Key Features
- Original Commodore PET 2001 system motherboard compatible with 9-inch CRT display models
- Supports MOS Technology 6502 processor at 1 MHz clock speed
- IEEE-488 parallel interface for device connectivity (disk drives, printers)
- Built-in tape recorder control and memory expansion interfaces
- 40-column × 25-line display compatibility
- RAM support up to 32 KByte with expansion capability
Technical Specifications
- Processor: MOS Technology 6502 @ 1 MHz
- Memory (Base): 4 KB or 8 KB RAM (up to 32 KB with external expansion)
- Primary Interfaces: IEEE-488 parallel, tape recorder (2x), userport, memory expansion connector
- Display Compatibility: 9-inch monochrome CRT (40 characters × 25 lines)
- System BASIC: Version 1.0
- Condition: New, open box
Typical Applications
- Complete PET 2001 system restoration and repair
- Vintage computer collection building for museums and archives
- Educational computer history documentation and reference
- Hobbyist and enthusiast retro computing projects
- Parts inventory for repair shops specializing in vintage Commodore systems
Compatibility & Replacements
Compatible With
- Commodore PET 2001 series computers (original release circa 1977–1978)
- 9-inch CRT display models with integrated keyboard and cassette drive
- IEEE-488 peripheral devices (Commodore disk drives, printers, modems)
- External RAM expansion cards and memory modules
- Userport accessories and interface cards
Replaces / Drop-In Replacement For
This circuit board is designed as a direct replacement for failed or non-functional PET 2001 motherboards in original systems. For specific board revision compatibility, consult vintage Commodore service documentation or contact a Commodore restoration specialist.
Works With
- Commodore BASIC 1.0 programming language
- Commodore PET 2001 and CBM 3000 series systems
- IEEE-488 bus protocol devices (disk drives, external storage)
- Vintage Commodore peripherals: 2040/4040 floppy drive systems, dot-matrix printers
- Cassette tape loading and storage systems
