6922/E88CC Russia/Sovtek Very popular 6922, used by many OEM's. 6922/E88CC Tesla/JJ. Made in Slovakia. These are more similar to older West European varieties of 6922/E88CC. New manufacture from Tesla/JJ in Slovakia. Philips ECG JAN 6922/E88CC .... Military grade US made tube (Out Of Stock) 6DJ8/ECC88 Ei-Elite: Gold pin, tested version of the regular Ei-Yugoslav 6DJ8/ECC88. Their copy of the old Dutch made 6DJ8. Very popular. (Out of Stock) 6922 ElectroHarmonix:A new version of the venerable Russian 6922 from ElectroHarmonix. 6DJ8 6922 Types 6dec69e8 6922/E88CC Tesla/JJ Tube. 6922 E88CC Made by JJ Electronic in the Slovak Republic. 6922tesla$16.95 6922 E88CC Philips ECG (USA) Tube New old stock (1980's production) military issue Philips ECG US made 6922/E88CC tube. 6922philips$15.95 6922 Electro-Harmonix Russia Tube 6922eh$12.95 Triode, USA For Customer Service, Questions, Shipping, Ordering, etc., M-F 9AM-4PM CT 1-800-774-3201 Email us Anytime: questions@triodestore.com TECH SUPPORT is available 4 days per week: 9 AM to 4 PM CT Monday, Tuesday, Thursday & Friday Ph 1-800-774-3201 Or email: tech@triodestore.com