GS-35B (GS35B,GS35) 2500 W triode. Brand new in box.
The GS-35b triode provides continuous wave generation in external-feedback self-sustained oscillators and grounded-grid amplifiers up to 1,000 MHz. The GS-35a version of this tube which is intended for water cooling, which adds 500W to the allowable anode dissipation. As with most Russian power triodes, the heat sink on the GS-35b is removable.
The factory English manual of this tube is here
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