L63 Osram gold label metal base Holy Grail of audio valves close code rare 6J5G equiv.

Description

Together with the FIVRE 6J5G we are proud to show you a quartet of Osram L63 gold logo.

We have chosen the best of the best L63 for you to buy and be safe with the purchase.

The L63 was first introduced in 1938 as a valve with octal base made by the MO-V.

The American counterpart was named 6J5G.

With 6.3 Volts heater it is basically half a 6SN7GT. Basically two L63 make one 6SN7GT!

The Osram L63 shown here are among the most sought-after valves and metal base is the first edition!

They  have been tested with AVO VCM 163:

Osram L63: tested 9.7mA 100%

Osram L63: tested 9.6mA 100%

Osram L63: tested 10mA 100%

Osram L63: tested 10mA 100%