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Groove Tubes Silver Series ST-7591-R Power Tube
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The Groove Tubes Silver Series ST-7591-R Power Tube is a somewhat obscure pentode tube used in some early Gibson amps that had been off the market. R...Click To Read More About This Product
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The Groove Tubes Silver Series ST-7591-R Power Tube is a somewhat obscure pentode tube used in some early Gibson amps that had been off the market. Recently, a Russian factory decided to supply it again. Groove Tubes ST-7591-R tubes are made in very low quantities and are a close copy of the original vacuum tube.
Country of origin: Russia
- NEW SILVER SERIES TUBES
- Groove Tubes Silver Series are tested and warranted to meet or exceed factory specifications.
- Silver Series tubes are excellent for "normal" tube replacement applications and offer exceptional value.
- Not recommended for the critical high gain V1 stages of high gain guitar amps, but perfect for the other less critical stages such as V2-V6 stages.
- Country of origin: Russia