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Nikon Historical Society -- hosted by the founding member Bob Rotoloni and members of the society. The NHS, based the US, has a worldwide membership. Our "Nikon Journal," published four times a year, concentrates on the history of Japanese photo equipment from the perspective of the Nikon Camera Company. The Nikon Journal often includes Nikon information not published anywhere else in the world. This forum provides an opportunity for conversation between collectors and users of classic film Nikons. See forum “stickies” for more information about the Society. If you are a serious Nikon Collector, you MUST be a NHS member. Join at http://www.nikonhistoricalsociety.com/!

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F3 quartz osilator ???? Hissing ????
Old 09-09-2016   #1
matteiflex
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F3 quartz osilator ???? Hissing ????

Hi, What is that Hiss sound on the F3 ? when you hold shutter open you can hear that sound right ?
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Old 09-09-2016   #2
FrozenInTime
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Ceramic capacitors used as part of a DC-DC converter are a more likely cause ( some dielectrics are piezo-electric )
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Old 09-09-2016   #3
sevo
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Yup, probably converter noise - that is what you could hear in earlier electronic flashes, too. Converters were often audio frequency driven (or at least near enough that subharmonics fell into the audio band).

I've never encountered a integrated quartz oscillator that did not operate at least in the megahertz range - the size of the quartz resonator is proportional to the wave length, a kHz one would hardly fit inside anything camera-sized...
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Old 09-09-2016   #4
matteiflex
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converters- wow, thanks. Now that's cool.
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