Videoton R Velence model was
manufactured in many different versions, this type can work only with batteries and it was produced for
the users who did not have available the supply mains.
The power supply is provided with two separate batteries, one of 1.5
volts for the filaments of the valves and the other one of 90 V. for
the anodic voltage.
The tubes used are the 1,5 V miniature series.
has been found in its original box.