[LAU] [Slightly OT] 312.5Hz

[Matthew Smith]

Quoth James Cameron at 2008-11-15 13:30...

> What you describe reminds me of a very low frequency RF oscillator with
> an audio tone added in.  I'd like to see a photograph of the wiggly
> line, as I suspect it is not a simple sine wave, 

Here are the photos so far, per Plutek's request:
<http://www.flickr.com/photos/msmiffy/sets/72157609086659400/>

I might pull the rotor off completely once I've put penetrating oil on 
all the rusty bits - then I'll get a close-up of the entire rotor.

I'm pretty sure that the way that the line is marked would mean that the 
tone would run as a sweep between the lower and upper frequencies - and 
25 times per second at that.  Should be an interesting noise - 
especially once it's been fed into a synth ;-)

> Does it start slowly?
That I can't tell as I haven't powered it yet.  Think I might replace 
the capacitor first - don't know what will happen if I energise a 40 
year old capacitor, but don't want my office full of shrapnel.

Rotor spins very freely so I'd guess that it would get to full speed 
quite quickly.

Cheers

M

-- 
Matthew Smith
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