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MF MD HG01 Acoustic Guitar Month 07-17-18

Groove Tubes Silver Series ST-12AX7-R3 Preamp Tube

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Product 219105
Product Price $0.00
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ST-12AX7-R3Country of origin: Russia...Click To Read More About This Product

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Country of origin: Russia

  • 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
Country of origin: Russia
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Review Snapshot

by PowerReviews
Groove TubesSilver Series ST-12AX7-R3 Preamp Tube

(based on 1 review)

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Reviewed by 1 customer

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Pretty Good

By Tyler

from Cleveland, Ohio

About Me Experienced


  • Easy To Use
  • Functional
  • Good Quality
  • Improves Sound


    Best Uses

    • Backup
    • Concerts
    • Practicing

    Comments about Groove Tubes Silver Series ST-12AX7-R3 Preamp Tube:

    These babys are not too bad for a poor college kid! Other than the fact that MF gave me one gold series tube in a silver box (I can't complain, it's a better tube) and one of the pins was bent I had no issues. I'm actually warming them up right now and about to play. They are smooth and warm when clean and very crunchy and funkadellic when distorted. I would most reccomend for a bluse style and my rig is a VK112 with GT silver tubes all arround (other than the one gold) and a Patriot Swamp thang.

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