Reviews Electron Tube

Preamplifier Preamp Tube Board DIY Kit 6J1 Preamp Tube Board Preamplifier Headphone Amplifier

• 【6J1 ELECTRON TUBE】Preamplifier adopt 6J1 electron tube, classic collocation. This is a preamplifier + headphone amplifier that can be used with a post-amplifier or an active speaker, or it can be used with headphones..
• 【POWER SUPPLY】Preamplifier adopts 12V DC power supply, internal stable boost to 100V to ensure the performance of the tube. The headset can be pushed to 300 ohms, the general recommendation is 16-150 ohms..
• 【WARM AND MELLOW MUSIC SOUND】A cost-effective preamplifier with warm, mellow, sweet and transparent sound. The sound of this board is warm, mellow, sweet and transparent, and full of music..
• 【ENJOY DIY】Preamplifier is a cost-effective preamplifier. Replaceable op amp and upgrade the tube, just plug it in the direction of the foot. This preamplifier allows you and your family to enjoy the joy of DIY..
• 【STABLE PERFORMANCE】Preamplifier preamp tube board is carefully debugged circuit with stable performance, quiet and no noise. Output port: 3.5MM headphone output, preamp output..

Okuyonic Phono Preamp for Turntable, Preamplifier Headphone Amplifier DIY Kit Tube Phono Preamp 6J1 Preamplifier for Active Speaker

• The headset can be pushed to 300 ohms, the general recommendation is 16-150 ohms.
• Adopt 6J1 electron tube, classic collocation.
• Adopts 12V DC power supply, internal stable boost to 100V to ensure the performance of the tube.
• A cost-effective preamplifier with warm, mellow, sweet and transparent sound.
• Carefully debugged circuit with stable performance, quiet and no noise.

dbx 540 Tube Mic Preamp with Optical Compressor - 500 Series

• Suitable for use in all 500-series-compatible systems.
• Class A transform less high voltage signal path.

DollaTek 2Pcs 6P1 Electronic Tube, J Class

Not That Kind of Girl Live Demo [Explicit]

• Funny Nerdy Atom Science Chemistry Joke for scientists or nerds! Best Gift For Physics Lovers. Funny I Lost an electron, are you positive? Gift this....
• Funny electron subatomic particle electric charge pun for chemists and chemistry teachers. I've Lost An Electron, Are You Positive? Pun joke for kids,....
• Lightweight, Classic fit, Double-needle sleeve and bottom hem.

I Lost an Electron. Are You Positive? Chemistry Joke T-Shirt

• Funny Nerdy Atom Science Chemistry Joke for scientists or nerds! Best Gift For Physics Lovers. Funny I Lost an electron, are you positive? Gift this to geeks on Birthday or Christmas. Funny Chemistry, Nuclear Physics humor..
• Funny electron subatomic particle electric charge pun for chemists and chemistry teachers. I've Lost An Electron, Are You Positive? Pun joke for kids, Chemist Joke Science Geek Humor gift. Smart jokes for kids..
• Lightweight, Classic fit, Double-needle sleeve and bottom hem.

Schrodinger's Cat Is Alive Dead Paradox Science Geek T-Shirt T-Shirt

• Funny Nerdy Atom Science Chemistry Joke for scientists or nerds! Best Gift For Physics Lovers. Funny I Lost an electron, are you positive? Gift this to geeks on Birthday or Christmas. Funny Chemistry, Nuclear Physics humor..
• Funny electron subatomic particle electric charge pun for chemists and chemistry teachers. I've Lost An Electron, Are You Positive? Pun joke for kids, Chemist Joke Science Geek Humor gift. Smart jokes for kids..
• Lightweight, Classic fit, Double-needle sleeve and bottom hem.

Organic Chemistry Model Kit (307 PCS) – Armyte Chemistry Molecular Model for Teacher Student and Young People Academic Chemistry Education, Pack with Atoms, Bonds, Electron Orbital (Colorful)

• ...rs or parents, you can teach your students or children about the complex molecular structure much easier than only picture in books!.
• 2. Most complete and precise Chemistry model: This sophisticated model contains 126 atoms including: Carbon, Nitrogen, Oxygen, Hydrogen, Sulfur, Chlorine, etc. Besides, it contains 30 electron cloud orbitals, 150 molecular bonds (single bond.
• triple bond) and 1 bond-disassemble tool. With this kit, it’s very easy to make a benzene, ethylene, methane molecular by using ‘4-hole Carbon’ atom and ‘1-hole Hydrogen’ atom..
• 3. Excellent Electron Orbital Model Kits: Our product contains extra electron orbital model for advanced education in Chemistry. For example, you can assemble a Methane electron orbital model by using ‘5-hole Carbon’ atom and ‘1-hole Hydrogen’ atom. This is a difficult part and therefore, it’s an essential part for students and children..
• 4. Durable Model: PP (polypropylene) plastic Atoms have good durability, high gloss and well texture. LDPE (Low density polyethylene) plastic linking bonds have perfect durability and perfect bending property. The product can endure many years. Never worry about broken problem..

MEETOOT Serological Pipette 10PCS 1ml Disposable Independent Sterilizing Packing Polystyrene Serum Pipets with Graduated Sterile Burette

• Individually packaged with color circle logo at the end of the tube..
• Electron beam sterilization adopts polyolefin filter element, which can effectively prevent pollution and has precise scale with extra capacity..
• Polyolefin filter element to prevent pollution, clear two-way scale, transparent, light weight, stable chemical properties, acid and alkali resistance, high temperature and pressure resistance..
• Made of polystyrene, no pyrogen, no endotoxin, no cytotoxicity, no hemolysis, no DNase and RNase..
• Product use, mainly used for measuring a certain volume of liquid and vacuum suction, widely used in tissue culture, bacteriology, clinical, scientific research experiments, etc..

GOONSDS Tungsten Filament 99% Purity Tungsten Metal Wire Coil,Length 1m,Diameter 0.04mm

• Purity: W ≥ 99% . Dimensions: diameter:0.04-0.1mm(Buy on demand) , length:1m. Package: 1 x Tungsten wire.
• Tungsten and its alloys are widely used in electronics and power industry because of its strong plasticity, low evaporation rate, high melting point and strong electron emission ability. For example, due to its high luminous efficiency and long service life, tungsten filament is widely used in the manufacture of various bulb filaments, such as incandescent lamp, iodine tungsten lamp, etc,.
• Tungsten wire is used to make direct hot cathode and grid of electronic oscillator tube and side hot cathode heater in various electronic instruments. The properties of tungsten make it suitable for TIG welding and other electrode materials similar to this kind of work..
• It is widely used in aerospace, aviation, oil drilling, electrical instrument and other industries, such as manufacturing heat sink, balance weight of control rudder and contact materials of switch, circuit breaker, spot welding electrode, etc..
• We are a supplier of high quality metal materials. We can provide you with the materials you need. You can contact us to get any materials you need.

Magnifying Glass with Lamp High Magnification Magnifying Glass High Magnification Microscope with Light Antique Jewelry Jewel Tobacco 4X65

• 【High Quality】The microscope magnifier is made of high-quality stainless aluminum alloy，which has high strength, high reliability, wear-proof, sturdy, durable in use..
• 【Height Adjustable 】The digital microscope magnifier can be used as a normal camera. Adjustable height of the bracket and free rotation of 360 degrees. It is 1-500 times continuous zoom electron microscopy..
• 【Wide Application】USB digital microscope can be widely used in antique identification, insect observation, circuit board maintenance and jewelry identification and other fields..
• 【Five Nozzles】The microscope magnifier camera has five nozzles for different purposes:# 1 for observation of narrow passages, for gynecological and hemorrhoid examination.# 2Ear canal examination .# 3Check the side view of the tooth or the wall of the tube.# 4Inspection of aircraft cargo.# 5 used to check the small hole, as nASAL Cavit..
• 【Quality Service】We are very professional sellers. If you have any questions during the use, please feel free to email us. We will try our best to help you solve the problem..

2000X Optical Microscope for Adults Students Kids, Metal Body, 2 WF Eyepieces, Dual-lluminators System, US Plug, Full Accessories for Kids Students Begginers

• 【2 Eyepieces/12 Kinds of Magnification】: Wide-Field eyepiece WF10 + WF25, removable barlow lens, 40x to 2000x magnification. Made of metal, best quality, better touch..
• 【Dual Illumination System】: With two light sources on the top and bottom, you can see the specimen better and see more kinds of specimen. In addition, the dial-type 6-color filter connects to the world of various colorful microorganisms!.
• 【Ergonomic Design】: Coarse & fine two focusing modes, 45 degree inclined eye tube, 360 degree rotatable monocular head. Dimmable lights can adapt to different sun intensities..
• 【Complete Accessories and Long Service Life】: Smartphone holder, research set, preparation set, is suitable for children elementary school junior high school and adult enthusiast beginners, school, laboratory, home, one-on-one lessons. Compared to electron microscopes, optical microscopes have a longer service life and can be used for decades if properly stored..
• 【Worry-free Shopping】: 30 days free returns & 2 year product warranty. If you have any questions, please feel free to contact us. We will reply within 24 hours. Thank you very much..

HAFGYKIO Wireless Digital Microscope 50X to 1000X Handheld USB HD Zoom Camera with 8 Adjustable LED Lights Available for Android iPhone Tablet Windows Mac

• 【HAFGYKIO Digital Microscope】50X-1000X magnification, providing you with clear object details. This is an electron microscope, not a conventional microscope, not suitable for serious professional biologists! This is definitely a great product for adults, teachers, students, beauticians, collectors, testers, electronics repairers and curious people interested in exploring the micro world..
• 【Wide Compatibility】Compatible with most smartphones and tablets (Android/iPhone/Tablet/Windows/Mac can be used). It needs to be used with the "QR Code" software in the Google store or APP store..
• 【HD Experience】Large focusing wheel with delicate feel, providing detailed zoom. There are 8 built-in LED lights, which can be adjusted according to different environments, even in dark environments..
• 【Photo and Video】It's not just a microscope, it's a camera, it can not only zoom in, but also take photos and videos. 1080P HD picture quality to meet your Nissan needs..
• 【Easy to Use】With 360° adjustable coil tube and large flat support base. Built-in rechargeable lithium battery, no rope interference. Help you explore the micro world more stably and freely..