Valves - Preamp

Written By Raymond Chong

Tesla E83CC

Golden Dragon 12AT7 preamp tube

EKCO ECC82 (12AU7 equivalent) preamp tubes

Amperex Bugle Boy 12AX7 preamp tube, marked PQ

Tungsol 6FQ7 tubes

Sharp 6FG7 tubes, made in Japan

Groove Tube 12AU7 preamp tubes

Groove Tube 12AT7 and Phillips ECC83 preamp tube

RAM 12AT7 preamp tubes

RCA 5751, National 5751 and Sylvania 5751 preamp tubes

Ei 12AT7 preamp tubes made for VTL

RCA 12FQ7 tube

Raymond Chong
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