Best Conical Test Tube

Riverstone Audio - 6P1P-EB Tested AND Matched Pair (2 tubes) - Vintage Vacuum Tubes - Amplitrex Tested - Replacement for 9-PIN 6P1 / 6P1P Tubes - Platinum Grade Pair - (2 tubes) 6P1P-EB

  • ...triode tubes such as 6N1P (6H1П) , 6N1P-EB (6H1П-EV) 6N6 or 6N6P (6H6П) tubes. *****AMPLIFIER DAMAGE CAN OCCUR IF YOU SUBSTITUTE THE WRONG TYPE OF TUBE. 6P1P-EB tubes can only be used as a direct replacement for 9-PIN Chinese 6P1 tubes. Carefully determine the type of tube used in your amplifier before ordering..
  • TESTED AND MATCHED by experienced engineers using Amplitrex tube testers to evaluate the electrical parameters of the tubes. Tubes are evaluated for plate current (ip), mutual conductance, tube gain, leakage and noise. After matching, the tubes are evaluated for sound quality in an amplifier. If any deficiencies are found the tubes are not sold. Less than 50% of the 6P1P-EB-tubes we test and audition pass our standard for high fidelity audio use and are used in our Platinum Grade sets..
  • TEST RESULTS CLEARLY MARKED on the tube boxes with data for both ip and Gm attached to the individual tube boxes. The tubes chosen for these matched pairs have close electrical parameter matching (ip and Gm are within 5% tubes). Individual matched pairs will have identical date codes..
  • BUY WITH CONFIDENCE – Our Platinum Grade 6P1P-EB vacuum tubes are backed by Riverstone Audio’s no-nonsense 3-year warranty – THE BEST WARRANTY AVAILABLE in the audio tube....
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12PK Test Tubes, 30ml - Bakelite Screw Cap with Rubber Liner - Borosilicate 3.3 Glass - 3.9\ x 1\ - Round Bottom - Leak Proof - Eisco Labs

  • INDUSTRIAL QUALITY || Pack of 12, round bottom test tubes with a 30ml capacity. Each test tube is made of high quality, heavy duty, Borosilicate 3.3 glass.
  • BAKELITE SCREW CAP || Each test tube is fitted with a Bakelite screw cap with a rubber liner to ensure a leak proof seal.
  • DIMENSIONS || Each test tube measures 3.9" tall and is 1" wide (including cap).
  • AUTOCLAVABLE || Autoclavable, with superior chemical durability. Low temperature gradient- can withstand high temperatures & thermal shocks.
  • GREAT FOR PROFESSIONAL LABORATORIES, CLASSROOMS & HOUSEHOLD || Superior chemical durability and heat tolerance. Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use.
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uxcell 304 Stainless Steel Test Tube Holder Lab Stand Rack 8 Hole 3 Layer for 26-30mm Tubes

  • Made of 304 Stainless Steel, durable and light weight, easy to carry. It can be used to place the test tube in an orderly manner in the laboratory, so as to save a lot of space, and can be used as a carrier to better move the test tube..
  • Highly polished surface, no edges and sharps, chemical and corrosion resistant..
  • 3 Layer, fit for 26 to 30mm test tubes, round holes, hold 8 tubes..
  • Economical and space-saving rack for applications in lab or at home..
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Trumpet/Cornet Cleaning and Maintenance Cleaner Care Kit with Valve Oil Tuning Slide Grease Flexible Brush Valve Brush Mouthpiece Brush Cork Grease Cleaning Cloth and More in Khaki

  • Valve oil:Suitable for lubrication and maintenance of the trumpet valve.
  • Tuning slide grease:Suitable for lubrication and maintenance of the tuning tube.
  • Flexible cleaning brush:It can easily remove the dirt in the trumpet diaphonic tube and the tube body,keep the instrument clean and hygienic.
  • Valve cleaning brush:The thick nylon brush can effectively clean the dirt in the valve.It is specialized to clean the dirt in the valve, cannot be used for cleaning the mouthpiece.
  • Mouthpiece cleaning brush:The conical design mouthpiece cleaning brush can easily clean the residual dirt inside the mouthpiece.
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Twdrer 25 PCS 50ml Clear Plastic Graduated Conical Centrifuge Tubes with Screw Cap and Rack for Scientific Experiments,Halloween,Christmas,Candy Storage,Party Decoration

  • Material: Made of high quality plastic material,safe,durable and sturdy.
  • Size: The tube: 29mm x 120mm,volume: 50ml,hole diameter of test tubes rack: 31mm,25 holes.
  • Screw caps: The cap can be closely screwed to the centrifuge tube which has great performance of sealing and prevent liquid leaking effectively.
  • Detachable centrifuge tubes rack: Please be CAREFUL when installing the test tube rack on account of the test tube holder is a little fragile.
  • Suitable scene: It is not only ideal for scientific experiments and storing beads,spices,liquids,seeds and more,but also can be used for mixing drinks to decorate Halloween,Christmas and theme parties perfectly.
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60Pack Plastic Test Tubes with Caps 45ML Clear Bath Salt Tubes Gumball Candy Tubes Tube Container Vials for Scientific Experiments Party Favors Decorate The House Candy Storage

  • 60 PACK CANDY TUBES FOR GUMBALLS: The clear test tubes come with metal screw caps, high quality and non-toxic with good seal, ideal for DIY bath salt tubes and candy tube containers.
  • 45ML DURABLE PLASTIC TUBES: The tubes are made of sturdy PET plastic, as transparent as glass, but not break easily, very safety test tube choice for children, as candy bottles rack, storage small items or use in lab.
  • LEAKPROOF AND PORTABLE: Unique screw caps design ensures the sealing performance, which can be used to storing handmade beads, powders and liquid, very convenient to storage and carry.
  • TUBE CONTAINERS SIZE: Vials Size: 5.5x0.98Inch (H x W), Vial Capacity: 1.5oz, large enough vials for bath salts, gumball, candy, jelly, chocolate bean, cookie nuts packaging.
  • MULTI-FUNCTION TEST TUBE: Widely used in DIY home project, party decorations and lab science test, such as homemade bath salt tubes, holding craft items bottles, chocolate M&M’s tubes.
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General Hydroponics pH Control Kit for a Balanced Nutrient Solution

  • General Hydroponics pH Control Kit contains everything you need to measures pH levels of your hydroponic grow reservoirs.
  • RELIABLE RESULTS: The streamlined testing system delivers fast, accurate, and easy-to read results every time.
  • ALL-IN-ONE KIT: Includes 8 oz. General Hydroponics pH Up Liquid, 8 oz. General Hydroponics pH Down Liquid, 1 oz. Test Indicator, test tube, an eyedropper, and a pH level chart.
  • THE PREFERRED WAY OF TESTING pH: Seasoned growers prefer our pH Test Kit to expensive electronic meters because of its reliability and ease-of- use.
  • EASY TO USE: To use, simply fill a test tube halfway with nutrients, add a few drops of pH test indicator, and observe the coloration of the liquid.
  • recommended pH for most plants is 5.5 to 6.5.
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Foxx Life Sciences - 410-0001-OEM -410-0001 EZFlow Cell Strainer, 40μm, Sterile, Blue, 50 per Box

  • Extended lip on the strainer enables aseptic handling with forceps.
  • Designed to fit into a 50 ml conical tube.
  • Individually packaged to ensure strainers remain contamination free.
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Foxx Life Sciences - 410-0002-OEM -410-0002 EZFlow Cell Strainer, 70μm, Sterile, White, 50 per Box

  • Extended lip on the strainer enables aseptic handling with forceps.
  • Designed to fit into a 50 ml conical tube.
  • Individually packaged to ensure strainers remain contamination free.
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Eisco Labs Premium Wooden Test Tube Rack, (12) 22mm Holes, 16.75\ Long

  • Minimum test tube or other object height is 3.25.
  • Use to hold tooth brushes, razors, or even pens.
  • Wooden test tube stand - 12 holes of 22 millimetre. Test stand measures 16.75 inch long 2.5 inch wide base and 4.5 inch tall.
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