tube
OK, I just want to clear up the previous definition for an Electron Tube (the type used in guitar amps and high-end audio applications). The fella before me said tubes convert heat into electricity, this just goes to show that a little knowledge is a dangerous thing. Tubes do have a heater element, but this is seperate from any signal processing the tube performs. Tubes have anywhere from 3 to 5 elemets inside, not including the heater. The first is called a Plate, this is a metal plate with a given DC voltage applied to it, usually 200 to 400 volts. Another part is called the Cathode, this is connected to ground, sometimes through a resistor or capacitor network. The voltage "wants" to flow from the plate to the cathode, but between them is a "grid." The grid is connected to the input signal and as the signal changes from a positive charge to a negative charge (all musical signals are AC current, oscillating between + and -)it allows more or less of the plate voltage to flow to the cathode, resulting in a large voltage swing on the plate in time with the input signal: the amplified signal. The other elements go between the grid and the plate and serve to make the tube more efficient, these "screens" as well as the grid can be biased, that is, they have a fixed voltage applied to them to more carefully control how much current flows through the tube. There is a heater element in the tube as well, very similar to a light bulb filament, but this only warms up the other components so that the tube can work better, this is analogous to putting oil in an engine. Tubes absolutely do not convert heat into electricity, I don't know if anything can convert heat into electricity unless you count a gas powered electrical generator, resistors convert electricity into heat, but that is another story.
The Urban Dictionary Hoodie
Very expensive for just a word on a sweatshirt, but my son was thrilled with it.
I kinda liked it.
Excellent It's the best only that accessibility to my home town Kampala Uganda seems to be honestly had.I just wish.I would get also things like Mugs,T shirts ,Personelised pens.Different colours.
Quality This is the highest quality product
Just amazing I started browsing on the urban dictionary for the best most exquisite word I could find. And lo and behold I found this! This word, or words fit so perfectly on the sweatshirt it to like it was made to be. The comfy and soft material truly hugs your body and makes you not want to get up Or do anything. 10/10

I LOVE THIS HOODIE!! It’s very comfortable, the writing seems like it’ll last for more than a few washes. Something to consider is embroidery! That’ll make your products stand out from just a regular hoodie with printings. Worth every dollar.
Mr Tulppo Is next This hoodie is my favorite article of clothing
Would be South better to have the definition on it as well like we used to be able to customize tshirts, sweats or mugs especially at the higher prices…
Review Details
Pro Customization
Create unique products with your own words and definitions
Live Preview
Personalize Your Design
Debug: Product Metadata
| Key | Value (click to copy) | 
|---|---|
|  Copied! | copiedKey = null, 1500);
                                            "> | 
Return Policy
Made Just For You
Each product is custom-printed with your unique text, making it truly one-of-a-kind.
Defect-Free Guarantee
If your product arrives with printing defects, damage, or quality issues, we'll send you a free replacement.
Custom Orders
Due to the personalized nature of your order, we don't accept returns for change of mind or sizing issues.
Questions about your order? Contact our support team for assistance.
Share this product
Size Guide
Measurements may vary by up to 2" (5 cm). Pro tip: Measure one of your hoodies at home and compare!
A - Length
Measure from the top of the collar to the bottom hem
B - Width
Measure across the chest from side to side
C - Sleeve Length
Measure from center back collar, over shoulder, down to cuff
Size Chart
| Size | Length | Width | Sleeve | 
|---|---|---|---|
| S | 27" | 20" | 33½" | 
| M | 28" | 22" | 34½" | 
| L | 29" | 24" | 35½" | 
| XL | 30" | 26" | 36½" | 
| 2XL | 31" | 28" | 37½" | 
| 3XL | 32" | 30" | 38½" | 
| Size | Length | Width | Sleeve | 
|---|---|---|---|
| S | 69 cm | 51 cm | 85 cm | 
| M | 71 cm | 56 cm | 88 cm | 
| L | 74 cm | 61 cm | 90 cm | 
| XL | 76 cm | 66 cm | 93 cm | 
| 2XL | 79 cm | 71 cm | 95 cm | 
| 3XL | 81 cm | 76 cm | 98 cm |