Connections for a Grundig reel to reel tape recorder
Grundig TK23
Inputs at rear of machine. From Left to right.
Circle with line underneath. (Micro socket) - microphone, mixer (Grundig 607), telephone adapter.
Square with line on top - Radio input/Output. Record/playback radio. Record records if player is connected to radio for playback via a 3-pole amplifier unit. Re-recording to a second tape recorder. Connection to a Grundig Stereo-Mixer 608.
Reversed Q - Phono Input. Connection to a record player or a second tape recorder. (for re-recording records or tapes)
Squiggly lines - Outputs. - Connection to external speakers. Grundig Stereo Box. Connection to an additional amplifier (Grundig 229) for synchronous recording.
Square with line at right. - Earphones.
Loudspeaker switch - (At bottom) - In the "0" position, the internal speakers are shut off.
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