|Abstract: , respectively. • RCA-5691 • HIGH-MU TWIN TRIODE RCA-5691 is a high-mu twin triode designed and manufactured , between mica insulators and five supporting rods. Structure of RCA-5691 and RCA-5692 RCA-5692 Dependable Service , quality- and quality alone- USE RCA "Special Red" Tubes : RCA-5691, RCA-5692 RCA-5692, or RCA-5693 RCA-5693. They are ...
|MICA WAFER 5691 5691 triode tube 5693 6SN7 Triode rca tube 56 6sn7 twin triode 6SL7 Triode tube 6sj7 6sn7gt RCA-5691 6SJ7 6sn7gt tube RCA 6sj7 datasheet abstract