MRJ ROM Switch
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The “ROM Switch” from MRJ is a daughterboard for PET/CBM computers that allows two ROMs to be installed in a single option ROM socket, selectable by a switch.
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C64/128
- ADL-6408 Analog Interface
- AEA PK-64 Packet Radio TNC
- Alphacom VP42 Printer
- Aprotek Minimodem-C24
- Aprotek RS-232 Interface
- BI-80 Display Adapter
- BusCard II IEEE-488 Interface
- CGRS Microtech DIADAC 1
- CGRS Microtech Quikdisk
- CLD Super 1750 Clone
- CMD 1750XL REU
- CMD HD Series
- CMD RAMLink
- CMD SwiftLink RS-232
- CMD/PPI RAMDrive
- CSI Connect Model 400S
- Data20 Z80 Video Pak
- Fidelity Impact Printer
- Hatronics HART RS-232
- INTERPOD IEEE-488 Interface
- Jameco RS-232 Interface
- Microlog AIR-1
- Microlog Morse Coach
- Mimic Systems Spartan
- PPI Battery-Backup Unit
- Promenade C1 EPROM Burner
- RTC C64 Link II
- Serial Box 64K Printer Buffer
- Supra Peak Modem Interface
- Video Pak 80 Display Adapter
- VSI Modem Link Interface
CBM-II
Items Wanted
PET/CBM
- BMB Compuscience Soft ROM
- CBM 64K RAM Expansion
- CBM HSG Graphics Board
- CGRS Microtech EXS100
- CGRS Microtech PEDISK II
- CGRS Microtech Spacemaker II
- Cyberia SuperBus
- Elcomp Monjana/1
- Eventide THS224
- HAL PCG-6500 Graphics Board
- HRT Super-Res Graphics Board
- ITS New Cursor
- K-Z Systems Branding Iron
- Madison Computer McTerm
- Madison Computer Z-RAM
- Mator Shark Hard Drive
- Matrix Software SORT
- MRJ ROM Switch
- MTU K-1002-2 DAC
- MTU K-1008 Visible Memory
- ODS 2114 RAM Adapter
- SIPOD IEEE-488 Interface
- Skyles MACROTEA
- SSE HardBox Corvus Interface
- SSE MW-1000 Mini-Winchester
- SSE SoftBox Z80 Computer
- SSS Basic Switch
- Supersoft BASIC 2+4
- Supersoft Graphics Board