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Audio and Video Talk
Vinyl
Recommended Phono Stage?
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<blockquote data-quote="croak" data-source="post: 32993" data-attributes="member: 361"><p>Nope, I use a solar cell driven by LEDs of a bicycle dynamo to charge a set of lead acid batteries that drive an invertor to provide complete independance from mains power. </p><p>fitting the exercise bike in the sweet spot does bring its challenges.</p><p></p><p>No fellas, the twist is reactive rather then inventive and instead of a std op amp for the first linear stage I am using a mic pre amp (like several manufacturers do) that alllows gain setting with one external resistor. the circuit then also no longer inverts absolute phase which it used to do with three inverting stages.</p></blockquote><p></p>
[QUOTE="croak, post: 32993, member: 361"] Nope, I use a solar cell driven by LEDs of a bicycle dynamo to charge a set of lead acid batteries that drive an invertor to provide complete independance from mains power. fitting the exercise bike in the sweet spot does bring its challenges. No fellas, the twist is reactive rather then inventive and instead of a std op amp for the first linear stage I am using a mic pre amp (like several manufacturers do) that alllows gain setting with one external resistor. the circuit then also no longer inverts absolute phase which it used to do with three inverting stages. [/QUOTE]
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Audio and Video Talk
Vinyl
Recommended Phono Stage?
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