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Emission Labs 2A3-Mesh V4

Posted by banpuku (A) on November 4, 2016 at 14:29:05

Has anyone tried the Emission labs 2A3-Mesh V4 with center tap heater? Here is some text from the Emission Labs site about the tube. I am very curious about using this tube, as it appears (based upon what EML says) that the cathode resistor and bypass cap can be eliminated. If so, this should be a very nice enhancement, as the signal path no longer has to go thru the cathode bypass cap, which would result in a more pure sound.

From EML web-site.
"With the center tap connected tubes, we enter a new field of applications. This has not been done before with Audio tubes. When biasing a DHT tube there is no cathode to connect something to. The cathode must be artificially constructed, by a resistor network. Since many years, all EML tubes already feature a center tapped heater, which is a way to enforce better electrical field geometry. Only, to this center tap there was never an electrical connection. So to the tube itself we had to make no changes. To the center tap of the heater, is now connected a wire, which becomes the third connection to the heater. Now the tube has five wire connections, and for this reason we can not use the 4 Pin UX4 base any more. We have chosen for the Octal base. It must be said, the V4 is a very special tube, which fulfills the needs of Circuit Design purists the best possible way."

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