2A3 RCA Radiotron large round logo pair audio triodes for all HI-END applications

RCA 2A3 Large logo £ 180 pair

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

RCA  2A3 Radiotron!

One of the best and most popular 2A3.

They still have paper logo on glass

Smooth sound, not to be missed.

Like all 2A3’s great audio valves!

Tested with AVO VCM 163:

RCA  2A3 52mA 100%

RCA  2A3 51mA 100%

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