By admin•December 8, 2016•comments off
Parameters: Filament voltage (Uf) = 6.3V; Filament current (If) = 0.17A; Anode voltage (Ua) = 120V; Anode current (Ia) 4.5 ~ 12mA; The second gate voltage (Ug2) =…
By admin•March 22, 2016•comments off
it use USB power. and This product don’t offer bluetooth. but has a headphone and mike input. / High Quality Sound? This product is Designed for user friendliness….