[sdiy] Optical Pickup

[Loscha]

Sorry, I didn't type that well at all.

The thing I saw very similar was a dial-tone generator, it made the
actual tone you heard in your ear as beep beeps and busy signals and
what-have-you.

On 2/4/09, Matthew Smith <matt at smiffytech.com> wrote:
> Quoth Loscha at 2009-02-04 16:43...
>
> > I don't know how to hook it up, but I think I know what it's from.
> > I believe it to be a ring signal generator from a telephone system.
> > had one similar in the exchange my Dad worked in when I was a kid.
> >
>
>  Someone else says it's ex-telecomms, but I don't think it's ringing - I
> believe that's done by switching 90V @ 25Hz to the line.  At least that was
> the old UK system.
>
>  All will be made clear when I get the pickup hooked up and working - I'll
> post a WAV to my site.
>
>  And then I'll find out what it sounds like passed through stomp boxes, a
> synth and other things.
>
>
>  --
>  Matthew Smith
>  Smiffytech - Technology Consulting & Web Application Development
>  Business: http://www.smiffytech.com/
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