13 PDF Article

ECC88 page sheet date. 1. 1. 2. 2. 3. 3. 4. A . 5. B. 6. C. 7. FP. 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 Eech test must be in between following limits: ECC 6DJ8. 6,3V. is balanced and matched, per datasheet specification, this is highest.

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For a true happened story, read the world of NOS. The “Help,My Amp has ‘s! If you don’t know the answer Low noise version of 6N1P.

Read below, how to connect the voltmeter. You can order any pair you like, as long as we have it available.

Read this table from the beginning. All from the same factory code. This is not possible for the most wanted part numebrs. The frame grid wire is so thin, when you open up a defective tube, you can not see it with the bare eye. These have lower noise, and less distortion. This is not normal for E88CC, test values can vary widely, and you have to take them as is.

Is your ECC88 microphonic? Don’t trust it when a sellers offers those repeatedly for low prices. This chart shows an example of how toset up voltage-amplifyingpentodes for maximum voltage output as opposed to maximum gain The example givenis an RCA Printing is fainted, but unburned, very white still.

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High Quality tubes from the Prague factory Code If you want a single you can datenb,att take the ones we have, we can not break up a pair for it. Order nr for a matched and balanced pair: However not with those!

Here are the possible answers, only ONE answer is correct. The frame grids have generally better parameter stability, lower noise datebnlatt lower hum. These are the later technology, and also a technology only very few could make. This is the reason why JAN tested tubes are so often agvailable as commercial tubes also!! This is probably the best ECC88 ever made.

The 6DJ8 / ECC88 / Tube

KT90 Note, larger 2 pages wide files, about 80Kbytes each. Please note that these are OEM spec sheets,except for some of the Resistance Coupled Amplifier charts, you will not be downloading any pages of a regular tube manual that you already have. Set it on AC, and if nothing is read, set it on DC. Clear white print like new, from spare equipment. It’s an incredible mess at the moment.

Lucky on internet auction sites. However they bias not as trhey shouls in all circuits, and have slightly lower gain. What is best, we had a small lot, and we have been able to select them all in perfectly balanced and matched pairs.

Is your ECC88 humming or making noise? Here is a Link to all test reports. The ones we sell, are “EB”, also when not specified like this, it’s what they are.

Eech test must be in between following limits: So you think you buy NOS, but they’re not. The VI Version is balanced and matched, per datasheet specification, this is highest quality.

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ECC88 Datasheet

JAN Testing is a military proces for lot qualification, which makes sure that weak production series will not pass as a whole. This one has a lot of pages from the European Philips Tube Manual. Used tubes of this type generally have more hum and noise.

These appear like that. Large dimension ECC88, with higher dissipation. Even with top-name amplifier manufacturers we see the same old errors, resulting from arrogancy, like not reading a datasheet. Frame grid wires can be as thin as 10um, which is technologically speaking a masterpiece of fine mechanics.

NOS original box Order nr for a matched and balanced pair: When it writes on there “ECC88, 1 ” dstenblatt you see on the picture here this means this tube was made in Germany, indicated by the number “1”. Original old blue boxes. For the rest every little detail is identical. Check also next item, below here. EHX new production under the microscope.

For a pair, order two pieces, they are automatically packed as matched pairs if you do so. Very good selected, and this batch has very high test values. May seem a silly advice, but it is a popular mistake.