The 401 Philips recorders we sold never came with a demo tape. If they did, the
crappy dropout plagued 1/4" 4 track, tapes wouldn't sound good at 15/15 IPS. Also
a demo tape would not have been made on the machine it was packaged with.
I worked on all the Philips domestic tape recorders from the TR1 right up to the
cassette era, and, when they went from 2 track to 4 track the dropout complaints
Good luck on finding a 401 (runs on germanium transistors) with decent rubber
after 50 years.
Also I was a reader for talking-books-on-request for CNIB, and a Roberts was used.
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