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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Datashdet they are EI tubes. Please note with some not with all the print text has suffered somewhat from storage. Well, I think experience and detailed product knowledge is the same! Done so in when these were made, but JAN testing is still used for semiconductors as well.
Click for high resolution picture here. They test all at 15mA, with grid voltage variation of less than 0,2 Volt!! The next three boxes are a short overview of the most important thing to check, in case of a problem.
E88CC Datasheet PDF –
This is the reason why JAN tested tubes are so often agvailable as commercial tubes also!! Even with top-name amplifier manufacturers we see the same old errors, resulting from arrogancy, like not reading a datasheet. The ones we sell, are “EB”, also when not datxsheet like this, it’s what they are.
So you can see it yourself.
Don’t try to be Mr. Used, but look and test like new. These were made for the military, as you can see from the sword signs on the back side of the tube. TESLA is even a frame grid tube!
6N1P = 6922 = 6DJ8 = E88CC tube. Double triode
Check datasheef next item, below here. Read below, how to connect the voltmeter. With good test value also, but these we could not match. This is a much improverd version of ECC88 made, with higher voltage capabilities, higher plate dissipagtion, and better in many many ways. So if you order for instance tube 4 from this list, it is pre-matched with tube 8.
EHX new production under the microscope.
This is a very critical one, and can cause a good tube to get defective, or give hum, sparks or other noise, datasheef exceeded. NOS original box Order nr for a matched and balanced pair: If you don’t know the answer Printing is fainted, but unburned, very white still.
This batch had very good values. JAN Testing is a military proces for lot qualification, which makes sure that weak production series will not pass as a whole. Interesting detail with the tube box.
So with them, what you pay is what you get. Clear white print like new, from spare equipment. So you take samples, you overload them for a datashret time, and when too many fail the whole lot is rejected. Eech test must be in between following limits: They are waiting for you there.
All others are gone, gone, gone.
Now of course manufacturers could still sell such tubes on the commercial market, but the military refused to take those. This is a jewel. Now that EI is closed sinceprices of EI tubes are expected to soar. W88cc is not much but we have to say it. So you think you buy NOS, but they’re not. Order nr for a matched and balanced pair: These are the later technology, and also a technology only very few could make. Here are the e88cd answers, only ONE answer is correct.
When you refer to finest datasheet details, they say they don’t need to know, they have already “30 years experience”.
You can order any pair you like, as long as we have it available. Perfect quality, good boxes.
This is probably the best ECC88 ever made. Note, National was a tube re-branding company of very good reputation. Used tubes of this type generally have more hum and noise. On internet auction sites, tubes are re-labelled, retro-gold plated, re-branded and used tubes are put in re-printed new boxes with the stamps ne-newed. This is not possible for the most wanted part numebrs. Datashet many problem cases, the ECC88 is not used correct.