▼ Menu

    
Extras ▼

The 19AQ5 is an audio output beam tetrode. The ratings, except for the heater match the 6AQ5 that is the direct equivalent of the EL90.

Power output is up to 4.5 Watts at 8% total harmonic distortion.

Was it a feature of BVA rules that non UK manufacture had to be prominently displayed?

Through the slot in the anode can be seen the inner grids. The beam plate is not visible. The control grid supports are topped with radiating fins.

The thin glass tube envelope is 18 mm in diameter, and excluding the B7G base pins is 59 mm tall.

References: Data-sheet & ¹⁰⁴⁰.

Pin Connections

Absolute Maximum Operating Conditions^¶

Thanks to Frank Philipse for supplying the above PDF datasheet.