The ECC88 is a VHF double triode with separate cathodes. The ECC88 was is 48 mm tall. References: Datasheet &. Type ECC88 was first introduced in ECC88 page sheet date. 1. 1. 2. 2. 3. 3. 4. A . 5. B. 6. C. 7. FP. The 6DJ8/ECC88 is a frame grid sharp cut-off twin triode with separate cathodes designed for use in cascode circuits, RF and IF amplifiers, mixer and phase in-.
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So all four systems of this pair are the same. They are waiting for you there. When you refer to finest datasheet details, they say they don’t need to know, they have already “30 years experience”.
So you think you buy NOS, but they’re not. They were supplied with first class tubes by the manufacturers, and the country of origin is always printed on the tubes. Strangely so, but I see it over and over again.
Check also next item, below here. Datadheet, but look and test like new. When frame grid tubes, we write it in the description.
Only do these measurements inside your amplifier, when you have experience with this. Here is a Link to all test reports. However they bias not as trhey shouls in all circuits, and have slightly lower gain. This is not normal for E88CC, test values can vary widely, and you have to take them as is. Set it on AC, daatsheet if nothing is read, set it on DC.
To give you an idea, the size of a large bacteria is 5um. Not directly compatible to ECC88, so a secret tip if you can design your won circuits.
Frame grid wires can be as thin as 10um, which is technologically speaking a masterpiece of fine mechanics. They are pre-selected in pairs. Interesting detail with the tube box. Read this table from the beginning. In many problem cases, the ECC88 is not used correct. Now that EI is closed sinceprices of EI tubes are expected to soar.
Clear white print like new, from spare equipment. However not with those! This is a much improverd version of ECC88 made, with higher voltage capabilities, higher plate dissipagtion, and better in many many ways. All from the same factory code. This is a very critical one, and can cause a good tube to get defective, or give hum, sparks or other noise, when exceeded. Mind you they draw twice the heater current. Made on Philips machines.
ECC88 Datasheet PDF –
EHX new production under the microscope. Read below, how to connect the voltmeter. For the rest every little detail is edc88. So with them, what you pay is what you get.
ECC88 Datasheet PDF
These tubes are boxed and branded “National” USA. Called Uf Test with Voltmeter between Pin 4 and 5.
Eech test must be in between following limits: It is not much but we have to say it. Very good selected, and this batch has very high test values. For a true happened story, read the world of NOS. Unfortunally a big item particularly with this tube number.