ML4 Marconi balloon mesh plate rare equivalent AC/P CV1179 NR57

ML4 Marconi Osram balloon £ 380 pair.

ML4 Marconi Osram balloon £ 700 quartet.

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Description

ML4 Marconi Osram is a low impedance valve for use as a small output valve, initial L.F. amplifier or oscillator. The high conductance provides a considerable stage gain so that the ML4 can be recommended where sensitivity is required without any use of a pentode!

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