RIAA equalisation has been discussed often. But I am still looking for a special one I have not found yet.
It should be passiv and solid state. Although I like the designs presented by Vacuumstate.com it is not my way because the tubes are too spacy, the preamp will be built into the TT.
Is there a design with a high overload margin as with tubes but in solid state, perhaps FET cascode with high voltage?.
( My system is MM.)
It should be passiv and solid state. Although I like the designs presented by Vacuumstate.com it is not my way because the tubes are too spacy, the preamp will be built into the TT.
Is there a design with a high overload margin as with tubes but in solid state, perhaps FET cascode with high voltage?.
( My system is MM.)
The only solid state preamp with a significant higher supply voltage I know is the Kenwood L-07C (1977). It uses 2 x 47 V.
2 x 2SK68A FET long tailed pair
2 x 2SC1775 cascode
2 x 2SA872 current mirror
It uses active equalisation.
2 x 2SK68A FET long tailed pair
2 x 2SC1775 cascode
2 x 2SA872 current mirror
It uses active equalisation.
Hi Horexx,
I`d agree with principles like passive approach, balanced high voltage cascoded J-FET input, no muddy ICs and GNF.
I`d agree with principles like passive approach, balanced high voltage cascoded J-FET input, no muddy ICs and GNF.
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