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small3nf.jpg (1275 bytes)smcv.jpg (1013 bytes)BIG valves

Some of the larger stuff from my valve collection.

Large early transmitting valve, probably late 1920's

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General Electric GL-860, Marconi MR1 rectifier, used in Marconi 2MT experimental broadcast station (1922)

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Raytheon RK-28A, Philips PC 1.5/100, Large rectifier tube, CV150 diode

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Three high-power valves - one on right is an EEV FX2519 thyratron (6.25MW pulse power)

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Three large mercury-vapour thyratrons, which are similar in function to semiconductor thyrisors. The one on the left is a CV22, used to control a magnetron for generating high power radar pulses up to 3MW. Smaller thyratrons here

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Above thyratron in its wooden packing crate, looking like it's been caged and tied down to stop it biting people!

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Three triodes with side grid connections - General Electronics JAN CDR-808,  Eimac 100TH/VT218, Eimac 304TH (VT254), which has four parallel connected triode assemblies

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Eimac CWL-327A. Marked 'US Navy' Hrs. 50 - presumably a design life of 50 hours! Manufactured 1943.

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