L63 Osram ST fat shape smoked glass 6J5G audio valves CV1067

Osram L63 ST fat shape smoked glass £ 400 quartet.


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 L63 6J5G with blue and 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 the 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..

They  have been tested with AVO VCM 163:

Osram L63: tested 9mA 100%

Osram L63: tested 9.6mA 100%

Osram L63: tested 10mA 100%

Osram L63: tested 9.5mA 100%


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