I am working on a Teletype Corp M28 RT (thanks Bill!). After cleaning it
up and lubricating it, I put a signal to the LRPE2 (non-printing reperf)
yesterday, but it is just punching garble. All the punch pins are
punching and the punch patterns are repeatable, so I don't think
anything is sticking.  Adjusting the Range control makes some difference
in the punches, but still garble.

The fixed receive bracket gears in the LRXB base are what is called for
in the manual (fig 3) for 100wpm ("A" gear =158700; "B" gear = 158716).

But when I give it 100wpm characters (from a M28 KSR or Heavy Metal),
the reperf acts like it is running much faster. For example, if I send
LTRS, it punches 01111, which implies that the reperf is looking for the
first data bit while it is still receiving the start bit.

If I send Blank, it punches 00000 00001 (punches two characters),
implying that the reperf is reading two bits for every one that I send.

I know that the cross-office lines in the auto switching centers
operated very fast - up to 1000wpm.  Is this LRPE2 running at 200wpm?  I
can't find anything defining a "LRPE2", other than "non-typing reperf"

Thanks,

Duncan
K2OEQ






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