DescriptionMarantz SD-60 main audio PCB - NEC uPC1297 Dolby HX Pro IC.jpg
English: Marantz SD-60 main audio PCB - NEC uPC1297 Dolby HX Pro IC with associated components. The stereo circuit modulates two AC bias currents and injects them into the recording head via two small push-pull transformers (next to pins 9 and 10). This is a rare example of user-defeatable HX Pro; more often, the circuit is hard-wired into the recording chain and cannot be turned off.
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Captions
Marantz SD-60 main audio PCB - NEC uPC1297 Dolby HX Pro IC
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some value
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author name string: Retired electrician
Wikimedia username: Retired electrician
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copyrighted, dedicated to the public domain by copyright holder
copyright license
Creative Commons CC0 License
inception
26 December 2021
exposure time
0.004 second
f-number
5
focal length
40 millimetre
ISO speed
800
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photograph
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original creation by uploader
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image/jpeg
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