Matthew Smith wrote:
> Quoth Folderol at 2008-11-15 21:49...
>
>> Fascinating bit of kit. I'd be inclined to try to keep it as complete
>> and original as possible. I doubt you'd have a problem with the
>> capacitor. I know someone with a WW2 communications set that still has
>> almost all it's 'dry' caps, and only half the electrolytics have been
>> changed.
>>
>
> I have to confess, I do feel an urge to restore it.
>
> I will certainly do preliminary tests (once I've got the thing spinning)
> with and LED and a phototransistor, just to see what it sounds like, but
> getting a proper setup with the lamp and selenium cell seems like the
> Right Thing To Do.
>
You can get a combined infrared led/phototransistor in a 'reflective
switch', which could be neater if you do it that way. I'm using the
opb606 for another project, which costs under 1 UKP.
andy
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Received on Sat Nov 22 00:15:02 2008
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