Check the listing for details. 2x 6P14P-EV (6P14P-ER EL84 6BQ5) USSR OUTPUT PENTODE (NEW NOS OTK) MATCHED PAIR. Condition: Open box. Listed at 71.99 USD. 2x 6P14P-EV (6P14P-ER, EL84, 6BQ5) NEW, NOS, OTK STRONG USSR OUTPUT PENTODE MATCHED PAIR - TESTED 100% GOLD GRID Description The tubes were tested on L3-3 tube-tester: Input parameters: Un=6.3 V; Ua=256 V; Uc2=256 V; Rn=120 OhmOutput parameters: Ia=48+/-8 mA; S=11.5+3/-2 mA/V A miniature output pentode with increased durability, reliability and mechanical strength.It is intended for amplification of low frequency power.Durability is not less than 5000 h.Weight not more than 20 g.Main settings Heating voltage 6.3 VHeating current 700 ... 820 mAAnode current 40 ... 56 mACathode Current 65 mAThe reverse current of the first grid is 1 μASecond grid current 5 mAVoltage on the second grid 300 VThe slope of the characteristic 9.5 ... 14.5 mA / VCoefficient of nonlinear distortion 10%Output power with resistance in the anode circuit 5.2 kOhm 3.1 ... 4.3 WInsulation resistance between cathode and heater 10 MOhmLeakage current between cathode and heater 25 μAInput capacitance 8.5 ... 13.5 pFOutput capacity 6 ... 10 pFThe throughput capacity is 0.175 ... 0.4 pFOperating time 5000 hMade in USSR. LOT OF 2 PCs.high reliability.The tubes are new, never used.Made in "REFLECTOR" PlantTerms of Sale100% Feedback Seller!!! Returns must be sent to Ukraine. I can guarantee you complete satisfaction with all my products. If you receive an item you ordered which is damaged or defective, I will send replacement item. I only accept returns if the items you received are not what was described in the listing, damaged or defective. If exchangeis not possible money refund will be issued. Item for returning must have the original tags and packing, otherwise it won't be accepted. Shipping FAST AIR DELIVERY!It usually takes 10-24 days to deliver by air! Contact Us Contact ME on Ebay or Email if you have any question regarding this item.