6L6G Cossor Mullard CV1947 KB/K ribbed plate brown base with two large round getters HOLY GRAIL KT66 6L6G EL37 equivalent

Mullard CV1947 KB/K ribbed plate two large round getter £ 1,000 quartet

Description

The 6L6(G) was one of the most iconic valves ever made.

Described  as a powerful audio beam tetrode, it was used for audio amplifiers and modulated transmitters as well as in large radiogram and guitar amplifiers

The 6L6(G) saw the light in the mid 30s.

This section shows quartets of 6L6G including rare Mullard, CV1947, Cossor, Brimar etc.

The 6L6G is quite similar to a KT66

Heater 6.3 Volts Anode and Screen set at 350 and 250 Volts; Grid  -18 good current from 54mA with mA/V of 5.2

Mullard CV1947, holy grail. Basically the CV1947 is a UK Government sourcing specification for the commercial 6L6G.

Made in limited quantity by Mullard and patented by Cossor , such a valve features ribbed plate with two large full round getters.

Plate is ribbed and robust and it is held steady by an arched rod.

Two large round getter at bottom for extra duty and highest performance! NOT to be missed!

The best 6L6G KT66 money can buy!

Tested with AVO VCM 163

71mA 72mA 70mA 71mA 100% emission and working 0rder.

Suit all vintage and modern amplifiers

 

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