RK05 spindle pulleys - trade 50Hz vs 60Hz?
fritzm at slac.stanford.edu
Sat Jul 28 20:58:42 CDT 2018
> On Jul 26, 2018, at 12:19 AM, Mattis Lind via cctalk <cctalk at classiccmp.org> wrote:
> You need to move the motor to a new position in the RK05. The drive is
> already prepared for all this. It is just the pulley, moving the motor and
> the 220VAC jumper that is needed.
I'm just working on my second RK05 drive now, to see if I can get it going by VCF West (I'm going to get crazy this year and rent a truck and show the 11/45, so some other people can enjoy it :-))
In any case, I can confirm that the power supply and transformers are jumper-able for 220VAC, and the motor is on a spring-tensioned swing arm, so it probably accommodates a different pulley just fine. HOWEVER, I noticed today that my particular motor has an ominous bright orange sticker on it that explicitly says "60 Hz ONLY". As far as I know, its an original motor. FWIW!
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