Dual triode valves with eight pin octal base

A Double Triode, also known as Dual Triode is basically a valve or tube keeping two triodes in the same envelope. Therefore, a double triode has two Anodes, commonly known as A1 and A2, which are two independent valves in the same envelope,

Most common double triodes are ECC81 ECC82 ECC83 12AT7 12AU7 12AX7 B36 B65 ECC88 E88CC ECC32 ECC33 ECC34 ECC35 ECC40 6SN7GT 6SL7GT

B65 B36 ECC31 ECC32 CV181 ECC33 ECC34 ECC35 6SN7GT 6SL7GT etc