NOS 12BH7A with GRAY-PLATES. NOS LOW NOISE 12BH7A. These 1960's 12BH7A are IMPOSSIBLE to find! TUBE MUSEUM "TROPHY" QUALITY. 1960's NOS RCA MATCHED PAIR. Made in USA in 1960s WITH ACID CODES IN GLASS.
NOS 12BH7A with GRAY-PLATES. NOS LOW NOISE 12BH7A. These 1960's 12BH7A are IMPOSSIBLE to find! TUBE MUSEUM "TROPHY" QUALITY. 1960's NOS RCA MATCHED PAIR. Made in USA in 1960s WITH ACID CODES IN GLASS.
12AX7 ECC83 7025 6CC41. Voskhod (2) 6N2P-EV Matched pair Triple Mica Triodes NOS ~. Voskhod 6N2P-EB (also written as 6Н2П-ЕВ ) is a high-durability, military-grade Soviet vacuum tube that is functionally similar to the 12AX7.
CV4004 ECC83 / 12AX7. Up for your consideration a Closed Matched pair of British made, audiophile preamplifier tubes. Half Box PLATES (15mm) “O” getter. Each side/triode is superbly balanced. ACCEPTABLE IN TV7 CHARTS IS: 32.
These are very high transconductance wide-band pentodes for industrial applications, with high amplification factor at low plate resistance (triode connection) similar to the famous D3a tubes. Factory codes are d36 Δ1H4 and d3?.