Iskra Delta was a Slovenian computer manufacturer that operated from 1974 -1990. Triglav was one of the computers they made. It was interesting because of its design, it contained a Pako 3100 terminal that connected to the computer via the serial connection (RS232).
The keyboard in question was a common design at the end of Iskra Delta life, it was included with multiple Pako series of terminals (3100- 5000) and also with later models of Partner computers, however they had different connector. Paka keyboard had DB25 connector, where the Partner one had a DIN one. Block diagram of Pako 3100 mentions the keyboard as TK 401
Paka 3000 and Paka 3100 terminals (Images from Računalniški muzej).
Pako 3100 keyboard is also compatible with Pako 3000 terminal, which keyboard had the similar design as Partner computer, but with different connector 25 pin vs DIN.
Later Delta Partner keyboard and monitor, it resembled the Triglav terminal, however the keyboard had a round connector.
DB25 connector on Pako 3100 keyboard.
Different system with similar design.
The keyboard was really well designed and it contained cherry switches.
Service manual can be found: https://github.com/rihardgDev/IskraDeltaTriglav/tree/main/Cherry%20Keyboard
The folder also contains the ROM content from the keyboard.
Resources: https://en.wikipedia.org/wiki/Iskra_Delta
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