I have finally gotten a little info on the mythical ARPE magnet controlled reperforator. This 20 characters/second punch is described in specification 5641S which I unfortunately do not have. (The 20 chars/sec spec comes from an ILLIAC description)
But eBay yielded up the parts manual 1153B which I have scanned. There were 5, 6, and 7 level chadless and full-perf versions
https://www.navy-radio.com/manuals/tty/1153b-orig-5407.pdf
Nick England K4NYW
www.navy-radio.com

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