N° d'article : UY85 / Modèle : UY85
Tube électronique UY85
The UY85 is a half wave rectifier and would be used on small universal (AC/DC) mains appliances. The heater chain would draw 100 mA and this was to enable the small number of valves used in a broadcast radio receiver to be run without a large dropper (ballast) resister.
The UY85 can work into a maximum reservoir capacitance of 100 µF, as protection a series resistance of 100 Ohms minimum is required.
The thin glass tube envelope is 20 mm in diameter, and excluding the B9A base pins is 57 mm tall.
Heater : indirect; Uf = 38V; If = 0.1A;Ufk = 550V
Maximum Ratings : Uas =-700V;Ias = 660mA
typical Characteristics : Utr = 250V;Io = 110mA;Uo = 245V
applications : halfwave power rectifier in serial heated devices
Equivalences : 38A3 / U119 / U381
Socle : B9A