Sensibly equivalent¶ to:
The 6146 is a very popular small transmitting beam tetrode valve normally used in pairs within HF transmitters of 100 W output.
For mobile use a quick heating version was made where 70% of full power was available in 0.5 seconds. This was the QZ06-20.
Much used in amateur radio equipment. The Heathkit designs of the 1960s being typical.
See 12BY7A that was often used as a driver stage in amateur equipment.
The wide glass tube envelope is 36 mm in diameter and excluding the IO base pins, the valve is 78 mm.
References: Datasheet & 1040. Type 6146 was first introduced in 1952.
Absolute Maximum Operating Conditions¶
Updated January 31, 2013. shape:wide.glass.tube construction:pinch type:beam.tetrode age:1950.1960 base:io heater:6.3v pins:8 pin:1.k.bp pin:2.h pin:3.g2 pin:4.k.bp pin:5.g1 pin:6.k.bp pin:7.h pin:8.m pin:tc.a