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q4b

  1. My last tube preamp

    My last tube preamp

    This is my SRPP linestage preamp based on the 6SN7, the Hong Kong-built BEZ Model Q4B by Edmund Lam. With all NOS tubes: '50s RCA 6SN7GTB blackplates, gas-regulators also by RCA (1958 OC3 and a 1967 OD3), and a NIB '50s Mullard GZ30 rectifier. With nothing but a 23-step attenuator and a...
    • jt1stcav
    • Media item
    • bez linestage q4b srpp
    • Comments: 0
    • Category: Member's Tube Gear
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