Tesla ANP402 Start

The first portable battery-powered tape recorder. Half-track, 4,75 cm/s speed, 8 cm reel diameter, frequency response up to 6 kHz. One side of the reel would play for 22 minutes. The recorder is very simple, it does not have a fast forward function, record level regulation is manual with no modulation meter. Tape erase is provided with a movable magnet.