PLEASE, READ CAREFULLY EVERYTHING. IT IS IMPORTANT.About Item: The ECC88, Tesla, double triode, matched pair.Analogues: 6DJ8 = CV5358 = M3624Other class quality (otherwise equel): CV2492; CV2493; E88CCHeater different: PCC88 Tested: Testing device - russian L3-3. Va=90 V, Rc=80 Ohms, Vf=6.3 V, Ia= (10-20) mA.Warning! Tubes are matched by electrical parameters (Ia), not by year manufacture or producer.Difference < 1% Ia1/Ia2 tube1 Ia1/Ia2 tube2 | pcs 1. We have these number of measured items in stock. Please select pair of the list and write to us. Price is for one matched pair (2 items). The ECC88 is a VHF double triode with separate cathodes. The ECC88 was designed for service as a cascode amplifier in the front ends of VHF radio receivers. One triode acted as the local oscillator and the other as the mixer (frequency changer).Weight: 10 g.PLEASE, READ CAREFULLY!SHIPPING METHODS:1. Europe - Economy International Shipping - no tracking number. If you wish faster delivery and tracking number, please select STANDARD International Shipping. 2. Worldwide - Standard International Shipping - with tracking number included in the cost of shipping. 3. Any order above $ 60 US - with tracking number included in the cost of shipping.The ESTIMATED delivery time varies from 7 to 45 working days (9 weeks) to most of the countries.Detailed info you can find in the table below.Delivery time % of shipments that arrive in the said delivery time Countryworking days (without holidays and weekends)<1515-2425-3435-45>45<3 weeks5 weeks7 weeks9 weeks>9 weeksCanada, United States5 %85 %7 %3 %0 %Africa, South America5 %20 %55 %20 %0 %Japan, South Korea10 %85 %5 %0 %0 %Taiwan, Thailand5 %45 %45 %5 %0 %China, India5 %40 %50 %5 %0 %Indonesia, New Zealand5 %40 %50 %5 %0 %Israel5 %65 %30 %0 %0 %Australia5 %55 %35 %5 %0 %Russia5 %50 %40 %5 %0 %Europe60 %35 %5 %0 %0 %Others, not entered shall, countries5 %20 %55 %20 %0 % Items are generally shipped out within 24 (rarely 48) hours after payment has been confirmed (Holidays, Sat. & Sun. excluded). The delivery time depends on the destination, holidays, customs clearance factor and other factors. Please, if you have a problem, DO NOT OPEN CASE on eBay before this period has elapsed or before you communicate with us. We ship your package to your eBay address. Please update your complete address including full name and phone number during checkout. We are not responsible for any wrong or undeliverable address. INTERNATIONAL BUYERS – PLEASE NOTE: Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. Please check with your country’s customs office to determine what these additional costs will be prior to bidding/buying. ADDITIONAL INFORMATION & QUESTIONS: The pictures are for general information only. They do not carry technical information. I apply maximum efforts to work better and better. It is very important for me to get your feedback to know, whether you are really satisfied completely! Please, contact us if you have questions - especislly in the delivery term. Please use the link Ask seller a question. GUARANTEES & a POLICY of RETURN: We guarantee you complete satisfaction with all our products. If you receive an item you ordered damaged or defective, we will send replacement item. We only accept returns if the items in original package you have received are not what was described in the auction, damaged or defective. If exchange is not possible money refund will be issued. All returns must be sent to Bulgaria. Item for returning must have the original tags and packing, otherwise it wont be accepted. Thanks And Good luck!102929_M