13 Apr
2009
13 Apr
'09
8:59 a.m.
Depends on how closely specified the motor is and if it's a synchronous
motor. Some years ago we used to ship in US 60Hz kit and run directly on
50Hz, as a "rull of thumb" derating by about 10% and it all worked fine. If
the motor is synchronous it may give you speed issues but it should still
run ok.
Mike
mike at soemtron.org
www.soemtron.org
----- Original Message -----
From: "Roger Holmes" <roger.holmes at microspot.co.uk>
To: <cctalk at classiccmp.org>
Sent: Saturday, April 04, 2009 8:19 PM
Subject: Keypunch that was on eBay
Thanks for whoever it was who posted the info on the
IBM 029 keypunch on
eBay. I have won it, nobody else bid. After it has been shipped across
the Atlantic I will have to think about converting it from 60Hz to 50Hz.
I have the remains of a 50Hz verifier which has a 240v / 50Hz motor I
should be able to use. Hopefully the rest runs on DC, so a step down
transformer before the transformers and bridge rectifiers might be
enough. Shipping costs more than the item of course.
Anyone have any thoughts if it is worth trying the whole thing with just
a 240 - 110 transformer? If the motor burns out, not the end of the
world.