Light Meter Repair: Silicon Cell Replacement

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ic-racer

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This Yashica Atoron uses a simple silicon cell and galvanometer with a match-the-needle dial.

The silicon cell has almost no output and won't make the galvanometer budge.
Yashica Atoron non-Electro final.jpeg
 
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ic-racer

ic-racer

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I just realized there is already a repair thread on this camera, I'll continue the light meter repair there:


 
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Important but pedantic distinction, Silicon is a semiconductor material found in photocells. Silicone is a synthetic rubber.
 

MattKing

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Important but pedantic distinction, Silicon is a semiconductor material found in photocells. Silicone is a synthetic rubber.

I'm a great supporter of pedantry. If anyone would like something to be corrected by a moderator, feel free to ask!
 
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Thank you spell checkers, but you missed galvanometer.
 

MattKing

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Thank you spell checkers, but you missed galvanometer.

Thread title fixed too :smile:.
After spending a chunk of my working life carefully proof-reading stuff, it is a burden difficult to shake!
Thanks for an interesting thread.
 

wiltw

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If you look online at a supplier of silicon photodiodes, you will quickly come to the understanding that the RIGHT one has to match quite a few different parameters as the one which is being replaced! I see 7 different parameters that need to match.


How does one characterize the existing part?... as simple as matching a visible product code number?
 

koraks

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I just realized there is already a repair thread on this camera, I'll continue the light meter repair there:



So let's continue here: https://www.photrio.com/forum/threa...electro-repair-minox-type.204035/post-2846428
 
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