Re: Hard Drive Motors, RSGs and Stuff

["Max Erhard" <max.erhard-at-softhome-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

I have one of these too and have wondered for a while whether they could
be syncronised.
If you apply 12volts of 50hz AC to one of the coils it will rotate
slowly, but they get very warm very quickly.

It really is tiny though, it seems through logic to me that something so
small cannot really move anything really big.

The circuitry on the board is fried, I would not have taken it apart
otherwise. Anyone know how I can make it spin again ?


Tesla list wrote:
> 
> Original poster: "Troy Peterson" <highvoltage-at-mad.scientist-dot-com>
> 
> Hi all,
> 
> It's been a while since I've posted to this list, but coiling has been
good for
> me. While I am still looking for a solution to my capacitor problem (Bottles
> are too lossy and big for my coil, but thats all I have...) Some other
> questions have finnally gotten the better of me. Firstly, what exactly is the
> diference between a syncronise RSG and an Asyncronous RSG. I have an idea: it
> has to do with firing, a sync gap always fires on the peaks or something, but
> please elaborate.
> Also, how do you guys think a hard drive motor would work for a RSG? The
motor
> I am referring to is a stepper motor that runs on 12volts, very compact,
> consisting 10cm outer disk for mounting and a rotating cylinder in the middle
> of this, the whole thing is about 3m long. If the specs for a typical hard
> drive are to be believed, these motors are capable of atleast 3600 RPM.
>     My next question is of line frequency, just a point of curiosity, what
> would happen if the primary xformer was driven with 120VAC at a much higher
> frequency like 400Hz, I don't plan to try this, just curious.
> 
> I think thats all for now,
> Regards, Troy Peterson [VE7SOK]
> <mailto:highvoltage-at-mad.scientist-dot-com>highvoltage-at-mad.scientist-dot-com
>