L63 Osram Marconi 10E/348 CV1067 6J5G white seal on glass ST fat shape Holy Grail

Description

We have chosen the best of the best L63 for you to buy and be safe with the purchase. It is high time to show one of our favourite valve, the Osram Marconi L63 6J5G with white seal on glass.

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 Marconi L63 shown here are among the most sought-after valves..

They  have been tested with AVO VCM 163:

Osram Marconi L63: tested 10mA 100%

Osram Marconi L63: tested 9.6mA 100%

Osram Marconi L63: tested 10mA 100%

Osram Marconi L63: tested 10mA 100%