This is IWISTAO's Blogger,and for IWISTAO HIFI MINIMART, which is about Tube Amplifier,Output Transformer, Power Transformer, Speaker enclosure, and Bluetooth Technology, HIFI Audio and related accessories and the information like as Bluetooh Speaker, HIFI Bluetooth Earphone,HIFI Bluetooth Audio, HIFI Bluetooth Tube Acoustics,, and other populor electronics consumer products,.etc.
Looking for the Perfect 8-inch Speaker Enclosure for Your DIY Project?
If you're ready to assemble your own speaker, take a look at this! IWISTAO offer a pair of high-quality 2-way bookshelf speaker cabinets, designed for easy customization and built with premium materials.
These solid wood enclosures feature a sturdy dovetail joint construction and diamond-cut corners, providing both durability and an elegant aesthetic. The natural wood finish, enhanced with a layer of varnish, gives the cabinets a classic, timeless look. The internal volume is approximately 26L, ideal for 8-inch drivers.
Customizable to Fit Your Components
If you have specific speaker units in mind, simply let us know the dimensions or provide us with the design drawings, and we'll custom-cut the speaker holes to your specifications. This ensures the perfect fit for your drivers.
Example Build:
One example build would be using the GRS RT1.R-8 Hi-Res Neo Ribbon Tweeter for the high frequencies and the Dayton Audio SIG225-4 8" Signature Series woofer for the low frequencies. These components are available for purchase both online and at local retailers. Don't forget to add a suitable crossover to complete your setup. Once assembled, you'll be ready to enjoy high-quality sound.
The FU33 electron tube is a direct-heating thorium carbide cathode glass triode, the anode cooling method is natural cooling, the maximum anode dissipation power is 350W, the maximum operating frequency is 30MHz, and the output power is 1000W. It is mainly used for oscillation in industrial high-frequency heating equipment and amplification in radio equipment.
This tube can be used interchangeably with the 833A/C type electron tube produced in the United States.
Vacuum tube FU33 is a high-power triode, usually used in communication equipment, with the characteristics of high voltage resistance. Some data of FU33 are indeed very scary. For example, the maximum anode voltage can reach thousands of volts, the maximum anode dissipation power is about 300W, and the filament current can reach 10A, which is very harsh on power supply. It seems that using FU33 to make power amplifiers is not an easy thing, but why use it? A senior audiophile said, "This vacuum tube has good pressure resistance, good sound, strong three-dimensional sound field, strong dynamic output of Class A, and freely retractable."
The DIY project spent a lots of efforts from at least 6 months ago, and now finally finished.
Here, we attached some data of vacuum tube FU-33 for you information.
Application ……………………………………………… broadcast communicate and High- frequency hearting.
Cooled style …………………………………………… wind cooled
Limit using parameter
Maximum filament voltage: 10.5V
Minimum filament voltage: 9.5V
Maximum anode DC voltage: 3300V
Maximum anode power dissipation: 350W
Maximum grid power dissipation: 20W
Mechanical Parameter
Weight: (approximately) 0.6Kg
Installation method: vertical, anode lead up
Cooling method: natural cooling
The highest temperature of the shell: 225℃
The highest temperature at the sealing joint: 200℃
High temperature at the terminal: 200℃
Use requirements and precautions
1. When using electronic tubes, there should be no more than one limit value parameter. Exceeding the limit value is not allowed even for a very short time.
2. The lead wires connected to the electrode of the electron tube must be in good contact with the electrode, otherwise an arc will be generated, and the electrode will be melted through, causing the tube to leak.
3. The electronic tube should be handled with care during packaging, storage, transportation, and replacement to avoid damage.
4. When the electron tube is working, the ventilation should be good, the surface temperature of the electron tube should not exceed 145 degrees Celsius, otherwise, the glass bulb should be blown to cool.
5. Note: When the anode dissipation power is greater than 300W, the glass bulb is blown and cooled.
Applications
More details for vacuum tube FU33 (813A/813C), please find here.
In order to get the desired effect for small diameter full-range speaker like as 2 to 4 inches, the limit of its low-frequency is a key. This speaker completely overthrew the concept of speaker-making, speaker adopted Labyrinth cabinet structure that will get well effect but the structure is more complex, limiting its development. Through we continuous the efforts, we make a revolutionary new speaker for the full range speaker.
Firstly, we accurately calculated quarter wavelength of the radiation frequency of sound, the get the length of the tube sound to ensure sound quality; Secondly, we use engraving machine to segment carving, remove all burrs. Thirdly, using a tube amplifier and transistor amplifier for repeated testing and audition, spend a lot of energy produced, in order to power matched.
Now, the 2 to 4 inches oak full range labyrinth speaker cabinet hit the market now.
You just need to select your full range unit speaker unit and install them in the cabinet only, so easy!
And how to do it, please take a look as below.
If you have questions, please contact us or leave your comments, thanks!
Audiophile‘s DIY is a fun, but also is an
attitude to life. You can DIY, get your unique product, rather than a
mass-produced production. When your unique design by DIY and ultimately, that
is how happy thing ah!
But sometimes no all DIY ideas can be
realized, such as lack to some critical equipments, and these devices are
basically large, expensive ... or local manufacturers provide only high-volume
production, who cannot make single one or small quantities of customized
production based on your requirements can be. For example, when making or DIY
tube amplifier, often the holes are opened on the top plate, frankly to say, this
job, if without the special equipment to do, it may be a difficult task. Or you
want to make the holes on a pure copper, which is more difficult to complete.
However, these seem more difficult to do,
now it can be more easily accomplished. We now introduce such a customized
service to solve the problem that quantity from one piece.
You just need tell us your requirements
with your drawing, we may accept 2D or 3d format, CAD (2D) format drawings like
as dwg, dxf, pdf include parts precision tolerances, surface treatment and
other special requirements or processing equipment. CAD drawing format; 3D
model formats include Sldprt, step, igs, stp, x-t, prt. And, parts’ material
may be aluminum, copper, stainless steel, or plastic.
Through pre-sales communication, we have an
offer for you. After you complete online payment, we quickly complete your
order until delivery.
This article is a guide to build your own
simple high quality RCA interconnect cables for your Hi-Fi audio system. These
"better DIY RCA interconnects" are unbalanced and made using shielded
instrument cable and high quality RCA plugs. This is a fairly easy DIY cable and
one stereo pair of DIY interconnects can be put together in about one hour. You
will not need any fancy materials or special tools to build this cable. Just
some meters of good shielded instrument cable and high quality RCA connectors,
a soldering iron and some good solder with flux, a handy knife and a good
side-cutter to prepare the wires for the soldering process. The photos only is as an example to demo how to DIY shielded RCA Interconnect Cables.
Material Prepared
1.High quality cable according to
your requirements, and define its length, like as Canare Professional Broadcast
Audio-cable.
Example of HIFI Cable
Constructions of Cable
2.High quality RCA connectors which
are black in color and with red and white indicator rings, and with gold-plated
contacts and rubber end-boots to firmly hold the wire in place, like as Budweiser
RCA connectors by U.S.
Example of HIFI RCA Connetor
Constructions of HIFI RCA Connector
Construction
Steps
1. Strip outer of cable Insulator
Strip Inner Insulator
2. Strip wires of cable inside
3. RCA Connector Plug Assembly Instructions
It is very important to slide the plug
housing over the cable before you start to solder the wire to the connectors !!
4. Prepared Shielded Wire
5. Soldering the wire to the RCA connectors with the fixture if need
6.Assembled RCA Interconnect Cable
Enjoy your cable! You will get more improvents of your HIFI system after to use this HIFI RCA cable.
We also sell this HIFI RCA Cable with Canare Professional Broadcast Audio cable and Budweiser RCA connectors by U.S., and it is made by manual also.This cable is high quality and cost effective. If you are interested in it, please take a look as the link below.
1. Used Budweiser RCA connectors by U.S, which is made of copper-plated plug, copper shell, and advantages of copper shell can be shielded from external interference.
2. Used Japanese origin Canare professional broadcast audio cable, and commercial grade products don’t achieve its performance, more than 94% of the copper network density to ensure effective shielding of electromagnetic noise. 40 each of the wires from the particular fine 0.08mm copper wire twisted together, particularly good durability. This is Canare send technical application structure model of work, it is a good choice for a lot of HIFI audiophiles to change the cables, its analytical abundantly clear, very good reputation, reliability and durability than ordinary wire several times stronger than the above, cheap affordable, high cost.
3. Used genuine Akihabara 99.99% high purity oxygen-free copper audio signal lines, each line adds four core nerves, its main role restore audio fidelity sound field, so the lossless transmission of audio signals have sufficient safeguards . General transmission line signals of different frequencies have different impedances, this feature on the sound reduction performance of sound vague, production people do this out of the high-end speaker cables called intelligent signal line characteristics of this line the signal level of the frequency is divided into two channels, 5KHZ more signals transmitted by a special material nerves, 5KHZ outer following signals through the transmission line, which greatly improves the frequency characteristics of the transmission line, the reproduction of clear and transparent sound.
4. Use containing 3% silver Senju solders soldering.
5. External plus a network of high-density shock as protection.
