[sdiy] Eu might be banning Vactrols and LDRs??

[Scott Nordlund]

A solar cell is basically a large diode, where a CdS photoresistor is just a piece of semiconductor with no junction.  In both cases the incident photons generate electron-hole pairs, but in a solar cell the electrons and holes are separated by the electric field in the junction's depletion region and travel to the cathode/anode, thus producing a voltage potential.  In a photoresistor, the electron-hole pairs just facilitate conduction (reducing resistance).

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> Date: Thu, 10 Sep 2009 14:53:13 -0700
> From: cynthia.webster at gte.net
> To: tony at makenoisemusic.com
> Subject: Re: [sdiy] Eu might be banning Vactrols and LDRs??
> CC: synth-diy at dropmix.xs4all.nl
>
> Is the chemistry of these anything like the chemistry of solar cells
> that generate power?
> Are they banning that which makes green power possible? Are there
> alternatives?
>
> Cynthia
>
>
>
> Tony Rolando wrote:
>> They will still be carried. They are still completely legal in the US
>> and Canada. I think we are a long way from losing vactrols.
>>
>> Tony
>>
>> cheater cheater wrote:
>>> it is, because then everyone stops carrying them.
>>> and what's the difference whether you are allowed by law to use them,
>>> if you cannot get them?
>>>
>>> On Thu, Sep 10, 2009 at 1:34 PM, Samppa Tolvanen
>>>  wrote:
>>>
>>>> Well,
>>>>
>>>> Even if the further exemption isn't granted, that doesn't mean that
>>>> availability for hobbyist private use is at stake.
>>>>
>>>> Samppa
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>>
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>
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