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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Used, but look and test like new.
ECC88 Datasheet
Called Uf Test with Voltmeter between Pin 4 and 5. Note, National was a tube re-branding company of very good reputation. These tubes are boxed and branded “National” USA.
This is a jewel. Eccc88 nr for a matched and balanced pair: Other pages online with tube data: These appear like that.
TDSL Tube data [ECC88]
All tube data there is, including gain, Gm, Plate impedance, grid leakage, etc, and compare it against “must be” values. Done so in when these were made, but JAN testing is still used for semiconductors as well.
JAN tested, for higher reliability. 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.
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. The rejects were probably sold a standard 6N1P, this is normal. Now that EI is closed sinceprices of EI tubes are expected to soar.
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”.
Clear white print like new, from spare equipment. The negative result is, end users have to swap tubes all of the time, and desparately try to draw conclusions from this.
Strangely so, but I see it over and over again. Ec88 of course manufacturers could still sell such tubes on the commercial market, but the military refused to take those. All others are gone, gone, gone. Leave it up to a technician otherwise. Factory does not excist any more: Tube is offered as used, but may be new. This is probably the best ECC88 ever made.
The Big Tube Data Page
This pair has printed on the glass: The next three boxes are a short overview of the most important thing to check, in case of a problem. For a true happened story, read the world of NOS. Don’t trust it when a sellers offers those repeatedly ecc88 low prices. Also you should try the Svetlana types 6N1P.
This is the reason why JAN tested tubes are so often agvailable as commercial tubes also!! Some more useful info: This chart shows an example of how toset up voltage-amplifyingpentodes for maximum voltage output as opposed datrnblatt maximum gain The example givenis an RCA Page1Page2Page3Page4.
These are no JJ Tubes. Iggy Pop’sRussian Tube Reference page.
