RCA Classic tube phono stage with passive line stage. Copy of circuit from the RCA Receiving Tube Manual, Technical Series RC-20 (circuit 20-16, page 419). Modern hybrid design with MosFet follower output. Passive RIAA eq. per the RCA design. Tubes are NOS 6n4 low noise (6 volt 12AX7). Each channel has LR8 HV regulator. Polypro output caps. Power supply uses Schotky rectifiers. Passive line stage (routes through volume controls when selected). Phono, Line stage input selector switch. Output has dual mono 100K ohm volume controls. Phono stage has Gold input and main output Gold RCA connectors. Built with many new HQ parts. All power supply parts, including power transformer, and regulators are new. 100% operational. Will ship with circuit schematic. Will consider trade for line stage output transformers or chassis w/heatsinks for Pass F7
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