Brand: Тензор (Tensor)
Model: ДУБНА-48К (DUBNA-48K)
Country of origin: Soviet Union (Дубна/Dubna)
First year of production: 1988
Dimensions: 324 × 249 × 46 mm (feet adds 2 mm)
Weight: 1103 g
Slow clone machine, manufactured in the science town of Dubna in the federal Moscow region.
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The ДУБНА-48К / DUBNA-48K is (in)famous for two reasons.
The CPU is running at half speed (1.875 MHz instead of 3.5 MHz) because the RAM chips were of a slower kind. The tape loading routine in ROM was altered to compensate for this. Games that didn’t use the ROM tape loading routine, such as turbo loaders, had to be loaded using a tape player running at half speed.
The name and font was used in the 2016 ‘Jason Bourne‘ movie. The specs shown for the computer in the movie appear to have been taken from the Dubna’s Wikipedia page.
The computer was shipped with a bulky PSU, a joystick and a SECAM video modulator.