Circuits

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Rotel RQ970BX phonostage, transistor types differ, PSU is two emitter followers	Rega Planet DAC and output stage	FET phonostage; needs clean PSU; you can tailor the RCs: this one was optimised for 100nF Epcos MKV caps.	Shunt regulator: get the CCSs good and you'll be rewarded with a low-Z 1MHz regulator.
4th order low-pass for non-oversampling DAC. Constant group delay right up to 20kHz!!!	Project Phonobox

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