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Page 1. Page 2. Page 3. Page 4. Page 5. Page 6. Page 7. Page 8. Page 9. Page Page Page Page Page Page Page The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 45 mm tall. References: Datasheet &. Type E88CC was first introduced. Page 1. Page 2. Page 3. Page 4. Page 5. Page 6. Page 7. Page 8.

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This tube excist as normal grid tube and as frame grid tube. Don’t trust it when a sellers offers those repeatedly for low prices. So you think you buy NOS, but they’re not. Is your ECC88 humming or making noise? Also you should try the Svetlana types 6N1P.

In many problem cases, the ECC88 is not used correct. Mind you they draw twice the heater current. Used tubes of this type generally have more hum and noise. Some tubes from equipment are sometimes actually never used. HQ f88cc made for the Czech post, from the Rosnov factory Code This is not possible for the most datasheett part dataheet. This is a very hard way of testing, since “good” tubes must still be rejected when they come from a production series where too many have failed the JAN tests.

Sorry, only one tube left. This may help you more than changing tubes. With good test value also, but these we could not match. These come with Amplitrex computer test report.


E88CC Datasheet PDF

They were supplied with first class tubes by the manufacturers, and the country of origin is always printed on the tubes. Only do these measurements inside your amplifier, when you have experience with this.

This is a jewel. This was told to me by a retired Telefunken Ulm Employee, so I think this is very reliable information. Please note with some not with all the print text has suffered somewhat from storage. This is not normal for E88CC, test values can vary widely, and you have to take them as is. All tube data there is, including gain, Gm, Plate impedance, grid leakage, etc, and compare it against “must be” values.

So all four systems of this pair are the same.

Like this, and no other way! This is the reason why JAN tested tubes are so often agvailable as commercial tubes also!! When you refer to finest datasheet details, they say they don’t need to know, they have already “30 years experience”.

However they bias not as trhey shouls in all circuits, and have slightly lower gain. Now that EI is closed sinceprices of EI tubes are expected to soar.

E88CC Datasheet PDF –

Read this table from the beginning. The ones we sell, are “EB”, also when not specified like this, it’s what they are. Don’t try to be Mr.

Not directly compatible to ECC88, so a secret tip if you can design your won circuits. Buy only from reliable sources!


When no, then skip this text. The negative result is, end users have to swap tubes all of the time, and desparately try to draw conclusions from this. JAN was the first choice, the rest got sold commerically. These tubes are boxed and branded “National” USA.

Made on Philips machines. If you don’t know the answer Also read here Uh-k. For a pair, order two pieces, they are automatically packed as matched pairs if you do so. This batch had very good values. This pair has printed on the glass: Click for high resolution picture here. Check also next item, below here. Meaning they are EI tubes. Lucky on internet auction sites.

For a true happened story, read the world of NOS. When it writes on there “ECC88, 1 ” as you see on the picture here this means this tube was made in Germany, indicated by the number “1”. If you want a single you can only take the ones we have, we can not break up a pair for it.

The frame grids have generally better parameter stability, lower noise and lower hum. Very good selected, and this batch has very high test values.