KT a. f. beam pentode. Base: OCTAL. Uf = 6,3 V. If = 1, 6 a. Typical Characteristics: Ua. = V. Ug2. = V. Ia. = ma. Ig2. = max. KT BEAM PENTODE. V INDIRECTLY HEATED. ISSUE 2. MARCH, The KT88 has an anode dissipation of and is primarily designed for the. given as a guide only – please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. KT88 Ratings.

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Just touch this grid, and it breaks. I have one too, this is a ruler that you can bend. TT21 and KT88 have the same plate. You are looking for troubles?

The KT88 fits a standard eight-pin octal socket and has dataseet pinout and applications as the 6L6 and EL After the patents ran out, the USA gave up on the beam tetrodes, and real pentodes were made there as well. That works also, but still not as nice a real third grid.

So called higher power KT88 made in China. Testing of KT88 with the L tube tester.

Model: BTP-KT88

No NOS spotted, but good used tubes are cheap. TT21, TT22 can be found here.

On the left picture you see a tube that was for sale an auction website. All sales is organized via USA, and they have their official worldwide dealers. So this test certificate is plain bull Against all knowledge, it has been tried with B some years ago, and it these were the lowest lifetime B ever, called B.


All the same tubes, just another jacket. They lost most of the knowledge, lost un replaceable machines, and happily fired what they thought were useless old workers. Definitely the use of carbon is not recommended.

Part numbers have been abused by the Chinese. Saying that KT66 and 6L6 are almost the same that leaves us with four very popular power pentodes. Getting back 25 years of experience, but from whom, and how? The plate construction is the same as normal Electro Harmonix tubes.

The best Svetlana to buy today.

Check articles from the menu to find out who is the father of OTL. This dtaasheet a picture of the TT Many of the tube curves you find in the internet, are made on a drawing table, with a so called “bend ruler”.

(Datasheet) KT88 pdf – BEAM PENTODE 6V 3V INDIRECTILY HEATED (1-page)

Speak in our words, they regards you dishonest. Sir, what brand do you want on them? So what leaves the factory is a strange mix of mainly good tubes, with some few bad ones amongst them, no good matching, and not enough burn in. KT88 pentode mode connection. As you can blindly trust most other data, such as datashewt etc. Oh sure these exist! Once in the tube they are indestructible.

Xatasheet I read the babble on audioasylum, the experts confuse me. Well made, using fine materials, and best tube bases sockets I have seen.

KT88 and Directory

I have seen many tube curves made with that. After that AL4 was developed.


You can only trust the tube inside piece parts. This tube probably tests fine, but what the buyer doesn’t know is, most of the lifetime is gone.

KT88 Datasheet PDF

Low cost, reliable tube. NOS examples in good condition are extremely rare. So on the one hand it is good they provided that information, at least they say the tubes comply with something. Their polished tube bases are unique, and very good looking.

It seems to me, these curves are hand drawn.

How do we know all of this? For instance Plate Current is between and mA. On the right picture you see two good used tubes that were offered an Internet tube dealer homepage, for very high prices. It is either KT66 or What a BIG mistake that was from Tesla. Datasheett can click on the next line picture, it gives a high resolution picture, and you can nicely see the details of the inside piece parts. After many rounds ot88 discussions, I got the following stupid answer from Mr.

When little particles of this come in between the grids, it sparkles inside the tube and it gives the famous fire cracker sound from your speakers. Message was send by Steve Heitert in Nov Here the marketing satasheet.

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