1 / 8 / 2 2 , 4 : 1 6 P M A u d i o B r o a d c a s t Q u a l i t y ( 8 5 0 A S e r i e s ) - H a m m o n d M f g . Quality Products. Service Excellence. Audio Broadcast Quality 850A Series Sealed Features Deep-drawn steel case with tin plated finish, with two convenient 6-32 mounting studs with mounting hardware. Sealed case and wax potted core internally for stable characteristics and long life. Wide frequency response +/- 0.5 db max. from 20 Hz. to 20 Khz. (except units over 5K ohms impedance, may be down 1 db 20 Khz.) Insertion loss of apx. 1 db. Maximum power level +15 dbm. with specified characteristics, or higher levels with reduced low frequency performance. Distortion is apx. 1.5% 20 Hz. under full power. Electrostatic shield between pri. & sec. connected to the green lead. Humbucking construction Balanced split windings on pri. & sec. for circuit versatility. Primary may be used as a secondary and vice versa for impedance matching. Includes mounting hardware. Lead length: Min. 4 Shipping weight 0.4 lb. (0.18 kg). h t t p s : / / w w w . h a m m f g . c o m / e l e c t r o n i c s / t r a n s f o r m e r s / a u d i o / 8 5 0 a 1 / 21 / 8 / 2 2 , 4 : 1 6 P M A u d i o B r o a d c a s t Q u a l i t y ( 8 5 0 A S e r i e s ) - H a m m o n d M f g . Nominal Impedance Nominal Resistance Nominal Impedance Nominal Resistance (Ohms) (Ohms) +/- 20% Overall Dimensions (Ohms) (Ohms) +/- 20% Overall Dimensions Part No. Application Primary Secondary Primary Secondary A B C D Part No. Application Primary Secondary Primary Secondary A B C D 850CA Emitter or MIC to Line 12/48 150/600 6 70 1.20 1.70 1.65 1.32 850EA Emitter or MIC to Line 50/200 150/600 27 68 1.20 1.70 1.65 1.32 850GA Line Isolation or Hybrid 150/600 150/600 71 71 1.20 1.70 1.65 1.32 850HA Line Isolation or Hybrid 150/600 300/1200 70 140 1.20 1.70 1.65 1.32 850JA Output to Line, or Line to Base 150/600 1200/4800 69 570 1.20 1.70 1.65 1.32 850LA Output to Line, Matching or Bridging 5K/20K 150/600 2240 69 1.20 1.70 1.65 1.32 850NA Output to Line, Matching or Interstage 150/600 10K/40K 65 4980 1.20 1.70 1.65 1.32 850QA Interstage or Isolating 10K/40K 10K/40K 4890 4980 1.20 1.70 1.65 1.32 Data subject to change without notice 2022. Hammond Manufacturing Ltd. All rights reserved. h t t p s : / / w w w . h a m m f g . c o m / e l e c t r o n i c s / t r a n s f o r m e r s / a u d i o / 8 5 0 a 2 / 2