8 abr 1950 año - Delay/echo in regards to a tape machine

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Delay/echo in regards to a tape machine  
A signal would be routed to a separate tape recorder that was set to monitor off its repcording head. The amount of time that occurred between when the signal was presented and when it finally came off the recording head provided a delayed signal back to the main recording. The delay time could be adjusted by changing the speed of the tape machine used for the delay. Multiple echo repeats could be generated by routing the delayed signal back into the machine, and other effects could be created by changing the speed of the machine. 

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