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MARCONI,  ML4, TRIODE OUTPUT VALVE,  MESH ANODE, GLOBE ENVELOPE, FOR PX4 AMP
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MARCONI,  ML4, TRIODE OUTPUT VALVE,  MESH ANODE, GLOBE ENVELOPE, FOR PX4 AMP MARCONI,  ML4, TRIODE OUTPUT VALVE,  MESH ANODE, GLOBE ENVELOPE, FOR PX4 AMP

MARCONI, ML4, TRIODE OUTPUT VALVE, MESH ANODE, GLOBE ENVELOPE, FOR PX4 AMP

  • £120.00

Only 1 left!

MARCONI,  ML4, TRIODE OUTPUT VALVE,  MESH ANODE, GLOBE ENVELOPE, FOR PX4 AMP

On offer  we have a beautiful mesh anode globe ML4 dating from the mid 1930s this is a very nice triode indeed. We have tested this on our AVO VCM163, the discrete values obtained are recorded on the test sticker placed on the valve, but in summary, it shows a nominal 100% reading for both anode current and mutual conductance. This ML4 looks to be an early example as it is enclosed in a globe envelope. Listed as a triode output valve, the ML4 was a professional and military type, little used in domestic radios. The ML4 was additionally used as an RF oscillator, as a single-valve phase splitter, and as a driver for larger output valves such as the PX4 and PX25.

 


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