2A3 Radiotron Cunningham Engraved logo on base MONO plate full getter Holy Grail of audio valves 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

RCA Cunningham 2A3 need no intro!

One of the best and most popular 2A3 in the world.

We offer a set of four pieces 2A3 RCA Cunningham with mono plate and logo still engraved on glass.

Beauty queen!

Sound is amazing, not to be missed.

All four 2A3 Cunningham valves have same design with large full getter!

Like all 2A3’s great audio valves!

Tested with AVO VCM 163:

RCA Cunningham Mono Plate 2A3 52mA 100%

RCA Cunningham Mono Plate 2A3 51mA 100%

RCA Cunningham Mono Plate 2A3 52mA 100%

RCA Cunningham Mono Plate 2A3 53mA 100%