Vintage Soviet USSR Russian USSR KGB Military Cassette Recorder Topaz D-202. It comes in original vinyl case. 2 motors The speed of the belt is 2.38 cm / s The frequency range is 250 - 5000 Hz The voltage on the line output is 250-400 mV Slowing down the speed - 12-25% Adjusting the rollback time is 1-5 sec. The weight of the recorder with a microphone is not more than 1.8 kg. Dimensions of the recorder - 211 x 174 x 64 mm The recorder has a good set of functions. In the microphone there is a switch of the main modes - recording, stop, playback, rollback. The microphone can also be used as a speaker, although there is a normal 0.25 W speaker in the recorder. Recording is performed from a microphone, telephone (needs adapter) or from a line input. Playback is made to the line-out, microphone-speaker, standard speaker, or earphone TM-2. Also on the microphone there is a LED indicator for recording and discharging the batteries. It is possible to control from the foot controller. The recorder has volume, tone, rollback, and slow playback speed controls. When the tape ends or breaks, a beep sounds, but there is no hitchhiking. The recorder is powered by 6 batteries type C, or from the external 12v 500 mA AC-DC power adapter (not included) . Center pin is - minus polarity. The device is really very convenient and functional, but for all this in 1985 it was necessary to give 590 rubles (about 5 month average). The circuit of electronics is rather complicated. The speed of the tape is 2.38 cm/sec (about twice slower than regular) and it is not suitable to play standard speed prerecorded cassettes. Recorder is tested for record and playback. It works... Will be shipped fast by Air Mail International priority mail. Thanks for looking I will ship to Worldwide. PayPal or Paypal eCheck.