An Inexpensive Method for Programming Stimuli Using Magnetic Tape
Apparatus for encoding and decoding stimuli using magnetic tape is described. The decoder is a frequency specific audio switch constructed from a five channel resonant reed relay; the encoder is a tape recorder. This apparatus allows the advantages of magnetic tape yet is inexpensive to construct.
Porges, S., & Fitzgerald, HE. (1970). An Inexpensive Method for Programming Stimuli Using Magnetic Tape. Psychophysiology, 7(1), 124-127. https://doi.org/10.1111/j.1469-8986.1970.tb02283.x