2A3 RCA Radiotron Square getter audio tubes best entry level top notch quartet

Description

The 2A3 is a three-electrode, high vacuum  type of power amplifier tube or valve for use in the power-output stage of A.C. operated receivers.

The 2A3 has also been used on HI-END amplifiers with stunning results.

We are proud to show some of the best 2A3 variations.

The exceptionally large power-handling ability of the 2A3 is the results of its design features. Among these are its extremely high mutual conductance and its large effective cathode area.

Filament voltage 2.5 Volts

Filament current 2.5 Amps

Plate Voltage 250 Volts max

Grid Voltage -45

Plate Current 60mA

Mutual Conductance 5.2

2A3 RCA Radiotron entry level to all audiophiles who need the right valve at the right price.

All four 2A3 RCA Radiotron  valves have same design with large getter.

Like all 2A3’s great audio valves!

Tested with AVO VCM 163:

RCA Radiotron 2A3 55mA 100%

RCA Radiotron 2A3 55mA 100%

RCA Radiotron 2A3 55mA 100%

RCA Radiotron 2A3 55mA 100%