#triodes

[lindahall]

Edward Victor Appleton – Scientist of the Day

Edward Victor Appleton, an English physicist, was born Sep 6, 1892, in Bradford, West Riding, Yorkshire.

read more...

[forgottenbones]

Why The First Computers Were Made Out Of Light Bulbs

[jelabs]

[audio-luddite]

Tube Madness.

I try to be neutral in the battle between Solid State and Vacuum tubes-valves-bulbs. As stated often, I have both and like them both. Which is used has more to do with weather and heating requirements in my modest little house.

Within the opposing forces are divisions and cults. In solid state there are FETs versus Bipolar transistors. There is also class A versus, class AB versus class D as well as other initials. There are high power and low power adherents.

In tubes there is a similar breakdown except there is no class D tube amp (I think. It would not be easy at all, and all the tube sound factors disappear in the megahertz )

A special place is reserved for ultra low power vacuum triode amplifiers.

What triggered this is I just got a junk mail from one of my vacuum pushers for a special 300B matched pair for only $1200. That is enough for one stereo amp with a blistering 8 Watts of power. The style of amp is called a Single Ended Triode (SET) which operates in class A.

The come in lovely finely finished wooden jewel boxes with custom padded fitted liners to cradle these treasures.

$1200 USD!

That is just the tubes. SET amps range in price from $300 out of China to $11,000 or even $15,000 though those come with tubes. I suppose if you are spending that kind of cash, $1200 for just a pair of tubes sounds reasonable.

I have my limits. One limit is money. Even if I won the lotto, I could never bring myself to spend that kind of money for so little power. Power is my other limit. I figure the minimum power figure I can be happy with is 60 Watts. I listen to big music. That TELARC Carmina Burana would sound like crap with only 8 Watts. Don't give me shit about "normal listening levels" I can do the math. Average RMS may be low, but if a 100 or 200 Watt peak goes buy in a few milliseconds I will miss it. The ARC 60 Watter runs out of amperes every so often.

Oh just use efficient speakers it will be fine. Stop right there. A set of Klipsch horns would suit that bill and would sound big, but those sound funny. And I would need a new house to fit them, and and and. You get into accepting too many compromises.

Audiophiles in the 300 B cult wax poetic about lush sound and liquidity and on and on. That is a voice, not accuracy. I prefer accuracy thank you very much.

This is a fairly big rant, eh.

[rotor25]

European Triode Festival 2024 par Holger Barske Via Flickr : #3 in Baarlo, Netherlands

[takmiblog]

6J5

[boypussydilf]

the graybles eps r so funny just for cuber. if you thought adventure time slang was weird NOW wait until language has changed over ANOTHER thousand years. actually he might just be an alien idk.

[retrocompmx]

Un día como hoy (20 de octubre) en ña tecnología

El 20 de octubre de 1906 el Dr. Lee DeForest anuncia un tubo de vacío de tres elementos, conocido después como tríodo. Este, permitía producir un efecto amplificador de voltaje para ampliar señales débiles haciendo posible la comunicación a larga distancia #retrocomputingmx #triode #LeeDeForest

[yiyuanmachine]

Ultrasonic plastic welding machine factory, TEL/wechat/ whatsApp: + 8613620006372

[an-enigmatic-mind]

I think I've been picking up on the significance of line weight.

[hfhoangquan]

Bóng đèn cao tần đa dạng công suất - nguồn gốc xuất xứ chính hãng. Nhập khẩu trực tiếp tại Nhật Bản, Trung Quốc, Pháp...

[rfantennaindia]

schottky diode smd - PCB Antenna

A diode is a two-terminal electronic component that allows current to flow in one direction while blocking it in the other direction. It is a semiconductor device made up of a p-type material and an n-type material, which are joined together to form a p-n junction.

Diodes are commonly used in electronic circuits for a variety of purposes, such as rectification (converting AC to DC), voltage regulation, and signal modulation. They are also used in power supply circuits, lighting circuits, and electronic displays.

[cetaceous]

Philips TB 3/1000 Transmitting Triode in an Audiophile Power Amplifier image credits: ReinoutdV on the diyAudio Forums

[jelabs]

[giuseppebonaccorso]

My latest album, "Plastic Triode," has been released, and I'm incredibly excited!

I hope you will enjoy it.

[takmiblog]

6J5