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GI-7B / GI-6B ( ГИ-7Б ) HF 10m and CB linear amplifier by YO6PMX
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This video presents a monoband 10m linear amplifier using the russian military tube GI-7B in grounded grid connection. The thest performed showed that no anode fan or just a small fan is needed to operate this tube when the original cooler was replaced with a P4 PC cooler. The anodic voltage is 2500V in idle mode and drops to 2100V at full output power.
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