pencil tube HQ riaa preamp
Using two double triode 6N17b and one 6N16b you can build a state of the art passive splitted RIAA phono preamp. The hq PCB from pcbway give you this opportunity.
Step 1: RIAA MM/MC phono tube preamp
Latest tubes produced were the miniaturized glass envelope series called pencil tubes. Two of them the 6N17b equivalent of the western 6112 present similar caharacteristics of the 12ax7 with less rumors and microphonicity, the 6N16b similar to the 6111 have same numbers of the 12au7. The project is based on a two stages splitted passive riaa. Tne anodic voltage is set at 250 V . Schematic and pcb files available on request . Thanks for the HQ pcb realized by PCBWAY
Sep 18,2016
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