Item Tag: Russian Federation

J 24 pcs. in lot NEW 6J9P – 6Z9P (6Ж9П) ~~ (E180F, E186F, F861, 6688) USSR TUBES Tubes are tested by tube tester. Tubes may be Variety 1 or Variety 2 depending on availability. (see photo)If you want to have a mix of tubes of different varieties in an order or a specific variety, please contact me immediately after placing the order. Tubes may have been manufactured in different factories and years. Main Technical Specification 6J9P (6Ж9П) High-frequency pentode for diverse application. It is intended for broadband amplification of high frequency voltage.Durability is not less than 5000 hours.Weight not more than 15 g. The main technical specifications for 6Zh9P-E:The heating voltage …… 6.3 ± 0.6 VCurrent of glow …… 300 ± 95 mAThe anode voltage is nominal (constant) …… 150 VAnode voltage limit (constant) …… 250 VAnode current …… 15 ± 4 mACathode limiting current …… 35 mAThe grid voltage of the first limiting (constant) …… -100 VThe grid voltage is the second rated (constant) …… 150 VThe grid voltage is the second limiting (constant) … 160 VCurrent grids second …… not more than 4.5 mAThe grid voltage of the third (constant) …… 0 VPower dissipated by the anode, limiting …… 3 WThe power dissipated by the grid is the second, the limiting … 0.75 WThe voltage between the cathode and the heater is the maximum (constant): – with a negative potential of the heater …… 150 V – with a positive potential of the heater …… 100 VThe steepness of the characteristic …… 17.5 ± 3.5 mA / VThe cutoff voltage of the electron current of the first grid …… is not more than -1.1 VInternal resistance …… 0.15 MΩEquivalent resistance of intra-lamp noise …… 350 OhmInput resistance at 60 MHz … 5 kΩResistance in the cathode circuit for automatic bias …… 80 OhmResistance in the grid circuit is the first limit … 1 MΩInput capacitance …… 8.5 ± 1 pFOutput capacity …… 3.0 ± 0.5 pFThroughput capacity …… not more than 0.03 pFCapacity cathode-heater …… not more than 7 pFThe decoration …… is a glass miniature. IMPORTANT INFORMATION! BE SURE TO READ BEFORE ORDERING! In the title of the lot is the name of the vintage Soviet tube and after the symbol ~ the name of the Western analog. Be careful! Soviet tubes are only approximate analogs of Western tubes and match pinout, but are not exact copies of Western tubes. Testing Soviet tubes with Western-made tube testers can sometimes show unreliable results. Programs (Cards) designed for testing Western tubes can sometimes show unreliable results and erroneously show that the tube is not good enough. But these are unreliable results and should be disregarded. The volt-ampere characteristics of Soviet tubes are different from their Western analogs!Use for testing exclusively testers with programs for testing Soviet tubes. If you would like to get the datasheet for the Soviet tubes in this lot, please send me a message before you place your order and I will send you a JPG datasheet for the Soviet tube. Also, do not test vintage tubes with modern digital pulse powered tube testers. Use only testers with a classic power supply. For reliable measurement results, warm up each tube for at least 5 minutes prior to measurement. I do not accept any claims on the quality of tubes if you test purchased Soviet tubes of this lot on testers with programs (modes) of testing Western tubes or test tubes on digital testers with pulse power supply. Dear customer, you can combine shipping buying more than one lot.If You need more than one lot, or another quantity – please contact. Also please check other available items. Thanks in advance!