Sinclair QL

Configuration

• Built: around 1985 (warranty seal: October 1985) by Samsung
• Mainboard: Issue 6
• CPU: MC68008, 7.5 MHz (Date Code 8524)
• MC: ZX8301 (CLA2345, Date Code 8512)
• PC: ZX8302 (NCR0380323, Date Code 8506)
• IPC: MAB8049 (Philips, Firmware V0.7)
• RAM: 128 KB (KM4164A-15)
• ROM: QL.MG, QL.MGG
• German keyboard layout and Sub-D ports

Trivia

• Came with a cover and two feet, but without PSU and other parts. The optical state is excellent, almost like new. All port covers and rubber feets are still present.

Known Issues

• The left microdrive motor has a damaged bearing, and needs replacement.
• The capacitors are the original ones, which might have dried out.
• The original 7805 is working at its load limit and needs a big heatsink. It should be replaced with a Traco Power TSR-2 DC/DC converter.
• Bought a 512 KB memory expansion that just waits to be mounted.

History

• 2023-09-25: Date of purchase