Sensibly equivalent¶ to:
The CV4003 type valve is a special quality version of the ECC82 double triode itself CV491. This double triode was often used in instrumentation applications as well as audio.
An amplification factor of 17 is quoted.
The thin glass tube envelope is 20 mm in diameter and the length excluding the B9A base pins, is 46 mm.
Reference: Data-sheet. Type CV4003 was first introduced in 1956.
Absolute Maximum Operating Conditions¶
Updated October 14, 2013. shape:thin.glass.tube construction:all.glass type:double.triode age:1950.1960 base:b9a heater:6.3v pins:9 pin:1.a pin:2.g1 pin:3.k pin:4.h pin:5.h pin:6.a pin:7.g1 pin:8.k pin:9.hct