Computer Technik Keyboard-90

The Keyboard-90 interface was designed by Jürgen Falkenberg and originally manufactured during the 1980s.

The Keyboard-90 plugged into the Sinclair QL via the socket for the 8049 co-processor and worked with either the original 8049 chip, or the Hermes replacement co-processor.

The interface allowed an XT or AT-style keyboard to be connected to the QL via a flying lead.

The board also contained an 8039, four 74-series logic and five 4000-series logic ICs.

An external version of the interface was also produced, whereby it connected to the 8049 co-processor socket via a flat ribbon cable, with the interface then placed within a plastic case which would sit outside the QL.

Although these interfaces proved quite popular, the use of wire pins for the connection to the 8049 socket meant that the pins were easily bent or broken.

QL-Keyboard-90 QL-Keyboard-90 Close Up

Title: QL-Keyboard-90
Interface Type: AT / XT Keyboard Interface
Connection: 8049 Socket
Through-Connector: Yes - for the 8049 Co-Processor to be placed in the interface
Manufacturer: Jürgen Falkenberg
Year First Sold: Unknown
Original Price: Unknown
Reviews: Unknown
Download Manual: Unknown
Accompanying Software: None

  • qlwiki/qlkeyboard90.txt
  • Last modified: 2017/09/06 08:20
  • by normandunbar