B329 ETC2 | Alldatasheet
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Technical content
12-6V INDIRECTLY HEATED AUGUST 1955 ISSUE I The B329/12AU7 is a commercial equivelent of Type cVvy91 BASE CONNECTIONS AND VALVE DIMENSIONS h hv 4 <Q Ki ’ Base: BOA Pu Ro Bulb: Tubular Pa Qaney Ke Max. overall length: 56mm Max. seated length: 49mm O 9) Max. dianeter: 22-2nm o op VIEW FROM UNDERSIDE OF BASE MATER Vp 63 12.6 v Ih 0.3 0-15 A MAXIMUM RATINGS (Each section) Va 300 v Pa 2-75 Ww Ik 20 mA Vh-k 180 v CAPACITANCES Cang (each section): 1-5pF. ce'-k! O-5pF ¢g-k (each section): 1-6pF. Cgi-k" 0+35pF CHARACTERISTICS (Each section) Va 250 v Ta 10-5 mA Vg 8-5 v on 22 m/v w 7 Ta 17 Xa TYPICAL OPERATION Va(b) 250 v Ra 100 kQ Rx 2-7 kQ Vgain R Qn assastat CepesTezel coo ities fl Hie FEST i Hast esressegettsaete ESBecdsae eat eat egeedescet lasagessatateal g* FEST ratified Ream iaeiitt errs ape een I MEEREEE cetaae cence? eeppaeaEEEEE ~ EE ed asasigy Aczatai’ dctaler ceca som) eeantiad HEE aang elie uae eceemeee Tt ssa dtaatees entagicAensee,feasseecal eect tnd Rear dente Pa stetbat eatasee ci sss2,casebeessheeas Haase catesneeegtteeecetee ecettoees ftttt o Moa bee 388" ggkeeh an c88! ante! canal ° 100 200 300 400 500 ne MARCONI’S WIRELESS TELEGRAPH COMPANY LIMITED Head Office: Marconi House, Chelmsford - Telephone : Chelmsford 3221 . Telegraphic Address: Expanse, Chelmsford