Sensibly equivalent¶ to:
The ECC189 is a high slope VHF double triode and the 6.3 Volt heater version of the PCC189. The frame grid ECC198 was designed to operate from a voltage source with heaters in parallel. The design application was as a cascode RF amplifier in VHF equipment.
The thin glass tube envelope is 20 mm in diameter, and excluding the B9A base pins, is 48 mm tall.
References: Data-sheet & 1040. Type ECC189 was first introduced in 1960.
Absolute Maximum Operating Conditions¶
Updated October 22, 2013. shape:thin.glass.tube construction:all.glass type:double.triode age:1960.1975 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.s