Markofon B452

Year of manufacture: 1949
Manufacturer: Markofon, later Tesla Brno
Tubes used: DK21, DF21, DAC21, DL21
Wave bands: long wave, medium wave, short wave 19 - 50 m
Description:

Briefcase-sized radio with built-in frame antenna and batteries. 90 V anode battery, 1,4 V heater cell. 0,9 W power consumption, 110 mW output power.