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Beogram 4000

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Jeffq
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Jeffq posted on Thu, Dec 3 2020 10:33 AM

Does anyone know if the  sensor arm Photo resistor is still available, and if so where can they be obtained, a leg has broken off mine and I need to replace it, failing this does anyone know  the specification of the photo resistor (OPH1) so I can try and find a suitable find a replacement

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Craig
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Craig replied on Thu, Dec 3 2020 12:57 PM

I have replaced a broken sensor with an OSRAM component....

A Beogram 4000 - (beoworld.org)

Craig
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Craig replied on Thu, Dec 3 2020 1:07 PM

Osram Opto, SFH 206 K IR

I think it was this one..........

sonavor
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Alain ("boneofiel") on the Beolover Blog used an OSRAM LPT 80A with success as well.

-sonavor

Jeffq
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Jeffq replied on Thu, Dec 3 2020 2:54 PM

Great, thanks, the manual shows it as an LDR as opposed to a photo diode but these are relatively cheap so certainly worth giving a go

sonavor
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Alain's blog post gives a detailed look at the original circuit and his replacement. It's good information whether you use his solution or not.

-sonavor

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