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Author Topic: Lightmeter  (Read 3539 times)
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bird777
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« on: December 18, 2007, 01:34:59 13:34 »

http://rapidshare.com/files/77410907/LIGHTMETER.pdf.html
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pl4tonas
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« Reply #1 on: December 18, 2007, 06:09:41 18:09 »

this is an Elektor project from December 1977 issue.
It is build using a CA3130 opamp, a BPW21 photodiode, and an analog meter.
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JimBaton
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« Reply #2 on: December 20, 2007, 02:41:23 14:41 »

which analogues of CA3130 opamp, BPW21 photodiodei can use
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snake2302
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« Reply #3 on: December 21, 2007, 07:13:50 19:13 »

which?
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