Recording / playback magnetic head for announcement devices
GB1209420A
Switching device for a portable dictating machine
DE1921089B1
Device for lifting the magnetic tape from the drive shaft of a magnetic tape device
DE1921178A1
Device for monitoring the recording and deletion process in magnetic information carriers
DE1921090A1
Magnetic tape pressure and magnetic tape monitoring device
DE1812502A1
Device for playing back a teaching program recorded on a sound carrier
DE1810856A1
Method and device for marking recording locations on a magnetic sound carrier
DE1524709A1
Arrangement to protect the connection point of tape-shaped recording media
DE1279085B
Circuit arrangement for decoding information symbols with the aid of magnetic core logic
DE1474289A1
Magnetic head for narrow tracks and method of its manufacture
DE1164495B
Amplifier with multiple outputs
DE1137232B
Arrangement of sound recording and playback devices with an insertion slot for inserting and removing round, foil-shaped sound carriers
DE1134839B
Friction gear for dictation machines
DE1148390B
Device for monitoring the amount of tape on the supply reel of a magnetic recorder
DE1133144B
Drive device for the tape transport of a magnetic tape recorder, in which the magnetic tape is pressed against the same tape roll in front of and behind the magnetic heads
DE1140792B
Clamping device for winding cores and spools
DE1140739B
Device for the insertion movement of the magnetic head in magnetic recorders with automatic repeating device
DE1112647B
Circuit arrangement for sound recording and playback devices
