943 reviews analysed
1. Nobsound NS-10P Mini Vacuum Tube Preamp Audio Hi-Fi Stereo Pre-Amplifier Treble & Bass Control
- Notice: ① Preamplifier needs to work with amplifiers or active devices
- ② Not PHONO preamp and can’t be used for record players
- Excellent sound performance
- No background noise
- Warm and soft tube sound
- Sound quality enhancement
- Pure tube preamplifier
- Suitable for all amplifiers and music types
- With independent treble, bass and volume control
- Vacuum tubes can be replaced by various models
- Mini size and exquisite appearance
- CNC aluminum shell and front panel
- Blue tube light
- Mellow and solid touch feeling
2. Nobsound Little Bear FU32(832A) Vacuum Tube Headphone Amplifier ; Mini HiFi Stereo Preamp
- Not only as a headphone amplifier, compatible with wide impedance range(12-200Ω), but also as a preamp for your other power amplifier, convenient and efficient to improve sound quality.
- 1*3.5 mm stereo jack input, can be connected to computer, CD, mobile phone and lossless player. 2*3.5 mm output can also be connected to digital amplifiers and active multimedia audio devices.
- Default Beijing FU32 vacuum tube, can be upgraded to GU-32/832
- Default NE5532 op amp, can be upgraded to OPA2604, JRC4558, OPA2132, OP275 and so on for enjoying different tones.
- Mini size with attractive appearance, compact design makes it suitable for desktop audio system.
- Prompt and courteous customer service.1 year warranty and life technical support.
Input signal overload may cause distortion and noise. When this happens, please turn down the volume of the audio source until no noise and then adjust proper volume through the amp itself.
Audio input: 1*3.5mm Jack
Audio output: 2*3.5mm headphone jack(one for 12-40Ω headphone and one for 40-200Ω headphone)
Power supply: DC [email protected](5.5/2.2mm)
Tube model: Beijing FU32
Op amp: NE5532
Dimensions: (L)86 mm *(W)86 mm *(H)43 mm(Excluding the tube)
Net weight: 320g
Noise may be resulted from:
1. Low-quality audio cables, poor audio source can cause the static noise.
2. The tubes not are plugged well on the tube sockets or the two red wires are not inserted to FU32 tube.
3. Devices like routers, mobile phones will also interfere in the audio signal and may cause static noise.
3. 6J1 Vacuum Electron Tube Valve Preamp Amplifier Board Headphone Amp Parts Preamplifier Musical Fidelity Kit AC12V 0.8A
- ★ Connect the 6J1 tube pre-amp between sound source and amplifier, it will effectively filter digital flavor, the music and human voice will be relatively good
- ★ Eight 470UF capacitor filter is very clean, excellent power system lead to no hum, filaments are powered with DC 12V and need to be connected in series in order to reduce noise
- ★ Coupling capacitor is electrodeless electrolytic capacitor with high frequency and low resistance
- ★ Using DC 5.5*2.1 socket and AC 12V transformer, you can also use AC 12V transformer without plug, just need to weld the power cord onto the circuit board
- ★ This kit comes in parts so you can assemble them together by yourself, enjoy the process of building your own tube amplifier
4. Vacuum Tube – 11×14 Unframed Patent Print – Great Gift Under $15 for Amateur Radio Operators and Stereophiles
5. JJ 12AX7 / ECC83 Preamp Vacuum Tubes (Three Pack)
6. Eagles 2pcs Black 1-1/4" Vacuum Cleaner Extension Wands with 1pcs 1-1/4"(32mm) to 1-3/8"(35mm) Convert Adapter,Vacuum Cleaner Accessories to Extent or Replacement
- 1. Package include:2pcs Vacuum cleaner extension tube and 1pcs vacuum cleaner adapter,2 extension wand can be extend to 34inch.1-3/8″ to 1-7/32″ vacuum hose adapter, enable 1-3/8inch hose accept all 1-1/4inch attachment to extend the working length or you have more chooses of brushes.
- 2. Vacuum cleaner extension tube,Insert the small head into the other straight tube or plug into brush can extend the working length, easy to handle a variety of difficult to clean ground, such as high bookshelf, ceiling dust, and corners that are not easy to reach.
- 3. Extension Wands Compatible model: suitable for Philips vacuum cleaner,also compatible with Eureka, Electrolux, Kirby, Shop-Vac and other household vacuum cleaners and central vacuum cleaners that requering 1-1/4inch inner hose end.
- 4. Wand Length:17-23/32 inch(45cm),the inner diameter of the big head is 1-1/4 in(32MM), and the outer diameter of the small head is 1-7/32 in(31mm). Be sure the right size before purchase.
- 5. 90-days money-back guarantee will be provide on our Vacuum Cleaner accessories,for any reason you are not satisfied with your purchase, please contact us feel free.
Name:Φ32mm plastic vacuum cleaner extension hose
Material:Durable ABS plastic
Size:17-23/32in x 1-1/4in x 1-7/32in
Usually plugged in 2-3 sections or connect with adapter for connecting and extending Vacuum Cleaner Attachment
Many brands, such as Philip,Eureka, Electrolux, Kirby, Shop-Vac and so on which requering 1-1/4inch inner diameter vacuum cleaner
1-1/4″(32mm) to 1-3/8″(35mm) Convert adapter
Size:Diameter 1-7/32″ to 1-3/8″
can be connected to any straight pipe or tip caliber with diameter 1-1/4″, or insert 1-1/4″ straight pipe into 1-3/8″ tip pipe
1 x 1-1/4″(32mm) to 1-3/8″(35mm) Convert adapter
2 x Plastic Wand Pipe
7. Universal 1.25-Inch Extension Wands 1-1/4inch Vacuum Accessory 34.2 inch Extension Wand 2 Pieces
- Enable the vacuum to reach hard to reach places, such as under furniture and high places
- The inner diameter of the large end is 32mm, the outside diameter of the small end is 31mm. Work with 1-1/4inch(32mm) hose end
- Length: 17.7inch, 2 extension wand can be extend to 34.2inch
- Fit many vacuum brands accepting 1-1/4inch inner diameter attachment
- 2 wands included
1-1/4inch(32mm) iner diameter extension wand, only for vacuums accepting 32mm wands. Please make sure your vacuum size or measure the size of your vacuum before purchasing.
By our suggestions above, we hope that you can found 12At7x4 Vacuum Tube for you.Please don’t forget to share your experience by comment in this post. Thank you!