TNW-17-1_page_23

TNW-17-1 | page 23 | https://thedailydialectics.com/pdfs/FIOA/TNW-17-1/TNW-17-1.pdf

was magnetized by running it across a re- cording head while sounds were being in- troduced. By running the same wire across a playback head, the magnetic pattern would reproduce the original sounds. In 1928, German engineer Fritz Pfleum- er adapted Poulsen’s invention by sub- stituting the…