[sdiy] Optical Pickup

[Graham Atkins]

This looks as though it may be military spec. Possibly
a mobile field telephone system ?.

Graham

On 4 Feb 2009, at 06:58, Matthew Smith 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
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