AW: 50Hz Pulley for 8" Floppy Drive Mitshubishi M2894-63B

[dwight]

Most all 8 inch drives were synchronous capacitive phased AC motors. That is until 3 phase low voltage motors started showing up on 5.25 disk drives.
The ac motors on the 8 inch drives rarely had jumper options for 120/240V AC. Most were fixed voltage and cycles. I can't recall any that I've seen that had a voltage option.
Dwight

________________________________
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Charles Dickman via cctalk <cctalk at classiccmp.org>
Sent: Wednesday, March 27, 2019 12:58 PM
To: Chuck Guzis; General Discussion: On-Topic and Off-Topic Posts
Subject: Re: AW: 50Hz Pulley for 8" Floppy Drive Mitshubishi M2894-63B

On Sat, Nov 10, 2018 at 3:27 PM Chuck Guzis via cctalk <
cctalk at classiccmp.org> wrote:

> One could also take Tony's approach and simply cobble up a
> crystal-controlled 60Hz source for the motor.  Shouldn't be too
> difficult--I suspect that the motor doesn't draw more than about 30W.
> If you had an excess of 12VDC, you could possibly use an inexpensive
> inverter to do the job.
>
>
Never saw a floppy drive with an AC motor. In the past discussions about
50Hz vs 60Hz drive, I expected it to be a 120/240 VAC motor. So is it
actually a low voltage (synchronous) AC motor?