Russian 6S63N Metal-ceramic Low Noice triodes. PS 1. 6S63N Name6S63NTypetriodeApplicationUniversal applicationCathode typeoxide,direct heatingEnvelopeNuvistor-type,metal-ceramicMass,g3Filament voltage,V6,3Filament current,A0,11-0,15Anode voltage,V27Anode current,A0,005-0,009Anode power,W1,2Steepness,mA/V6,5-10,0Reverse grid current,uA0,1Microphnic noise,mV30Gain10,0-20,0Socket typersh39Please allow for the following shipping times: EU countries: 5-8 business days, on rare occasions a few days more USA: 10-15 business days, on rare occasions more South East Asia (Japan, Singapore, S. Korea, Hong Kong, Taiwan etc) 10 business days, on rare occasions more India, China, Russia, Kazakhstan, Pakistan, Indonesia, Malaysia, Thailand, Australia, South Africa etc: at least 15 business days, but frequently around 25 business days Please note that shipping cost is calculated at average. If you have any objections please contact me for a specific quotation.