Ruby Tubes EL34BSTR Quartet Matched

Ruby Tubes EL34BSTR Vacuum Tube Quartet Matched

Brand:|
Overview
EL34BSTR Quartet - Sensational new high-gain EL with dynamic tone. Extra-strong bottle, gold-plated grid.
Part # 
072-944
Weight: 0.613 lbs.  
IN STOCK
Your Price
$86.40
Buy 6-up$79.20
Part # 072-944
Qty:  EA
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Product Details

Ruby Tubes EL34BSTR Vacuum Tube Quartet Matched
EL34BSTR Quartet- Sensational new high-gain EL with dynamic tone. Extra-strong bottle, gold-plated grid. All Ruby Tubes premium power tubes are carefully tested and matched. Matching is done by both plate current and transconductance. Each tube is marked with the plate current and transconductance for that tube and a matched pair or quartet will have tubes that have the same tested value. Ruby Tubes come with a 6-month manufacturer's warranty, one of the best in the industry. They are so careful about selecting and testing their tubes that they have no problem making this kind of an offer. If one of the premium Ruby Tubes fails during the 6-month warranty period, they will replace it at no charge.


PRODUCT SPECIFICATIONS
  • Tube TypePower Tubes
  • MatchingMatched Quartet
Ruby Tubes EL34BSTR Vacuum Tube Quartet Matched
  • BrandRuby Tubes
  • Part Number072-944
  • UPC844632005480
  • Product CategoryVacuum Tubes
  • Unit of MeasureEA
  • Product Rating
    (2 Reviews)
  • Weight0.613 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

View similar products to the Ruby Tubes EL34BSTR Vacuum Tube Quartet Matched
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Ruby Tubes EL34BSTR Vacuum Tube Quartet Matched

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Ruby Tubes EL34BSTR Vacuum Tube Quartet Matched

1-What does the designation BSTR after the EL34? 2-Where are Rubys manufactured?

Asked by: busbar
Well, it appears that the Shuguang EL34-B tube is sold by Ruby Tubes as their EL34B-STR. The -STR is Ruby Tubes own designator meaning they have been "matched" and are sold as as set of 4. But for all intents and purposes it is a standard EL34B. With an extra-strong bottle and a gold plated grid. Made in China.
Answered by: metalman
Date published: 2012-03-15

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