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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They are waiting for you there. This is a jewel. To give you an idea, the size of a large bacteria is 5um. May seem a silly advice, but it is a popular mistake.
TDSL Tube data [ECC88]
Note that the newElectro-Harmonix A is now available,and it does not requireany rewiring to use. The next three boxes are a short overview of the most important thing to check, in case of a problem. Buy only from reliable sources! Page1Page2Page3Page4.
Factory does not excist any more: Now of course manufacturers could still sell such tubes on the commercial market, but the military refused to take those. The ones we sell, are “EB”, also when not specified like this, it’s what they are. Done so in when these were made, but JAN testing is still used for semiconductors as well. This is not possible for the most wanted part numebrs.
Click Here for sheeton Sovtek 6B4-G. They are pre-selected in pairs. Don’t trust it when a sellers offers those repeatedly for low prices. Is your ECC88 humming or making noise? Also you should try the Svetlana types 6N1P. High Quality tubes from the Prague factory Code If you want a single you can only take the ones we have, we can not break up a pair for it.
Perfect quality, good boxes. This batch had very good values.
datsnblatt 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. Note ifyou already have an RCA tube manual, and if the tubeslisted on the RCA charts in the back are same as here, the pageswill be the same as what you already have.
KT90 Note, larger 2 pages wide files, about 80Kbytes each. So all datenbaltt systems of this pair are the same. Used, but look and test like new. 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”. The frame grid wire is so thin, when you open up a defective tube, you can not see it with the bare eye.
Very good selected, and this batch has very high test values.
Called Uf Test with Voltmeter between Pin 4 and 5. With good test value also, but these we could not match. Like this, and no other way! These are no JJ Tubes. Used tubes of this type generally have more hum and noise. Eech ecc8 must be in between following limits: Sovtek 6B4-G and 2A3 are slightlydifferent. However not with those! So you think you buy NOS, but they’re not.
Read below, how to connect the voltmeter. Here is a Link to all test reports. For a true happened story, read the world of NOS.
Also read here Uh-k. Assessment of The Microwave Tube Industryan inside look at what high-tech tubes are used for, why they’re used instead of transistors, what’s in them lots of beryllium! Anyway, not reading the datasheet may work with most tubes, but not with all. Lucky on internet auction sites.
These have lower noise, and less distortion. Clear white print like new, edc88 spare equipment. Tube is offered as used, but may be new. The negative result is, end users have to swap tubes all of the time, and desparately try to draw conclusions from this.
When no, then skip this text. Is your ECC88 microphonic? EHX new production under datsnblatt microscope. Other pages online with tube data: 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 It’s an incredible mess at the moment.
NOS original box Order nr for a matched and balanced pair: