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9/5/2018 Audio Broadcast Quality (800 Series) - Hammond Mfg. Quality Products. Service Excellence. Audio Broadcast Quality 800 Series Note: This product line has been discontinued as a stocked series. Information is for reference only. It has been replaced with 800A Series. For alternative solution assistance, please contact Hammond Customer Service - sales@hammfg.com or USA (716) 630-7030, Canada and International (519) 822-2960. Features Deep-drawn steel case with tin plated finish, with two convenient 6-32 mounting studs with hardware. Hermetically sealed for stable characteristics and long life. Header has nine 0.22" long solder pins. Frequency response +/- 0.5 db max. from 50 Hz. to 15 Khz. Insertion loss of apx. 1 db. Maximum power level +15 dbm. (except 841, 842 & 844 which are +20 dbm) with specified characteristics, or higher levels with reduced low frequency performance. Electrostatic shield between pri. & sec. connected to terminal 9. Humbucking construction Balanced split windings on pri. & sec. for circuit versatility. Primary may be used as a secondary and vice versa for impedance matching. Overall dimensions 1.75" (44.5 mm) wide x 1.25" (31.8 mm) deep x 2.56" (65 mm) high max. Shipping weight 0.5 lb. (0.2 kg) Part No. Nominal Impedance Max. Primary D.C. (Ohms) Unbalanced Current Application Primary Secondary (ma.) 801 Isolating, Matching *50/200 50/200 0.8 802 Isolating, Matching *50/200 (60/240) 125/500 (150/600) 0.8 804 Isolating, Matching, Hybrid *125/500 (150/600) 125/500 (150/600) 0.5 806 Dynamic MIC or Voice Coil to Grid *7.5/30 10K/40K 1.6 807 Dynamic MIC or Voice Coil to Base *7.5/30 600/2400 1.6 808 MIC or Mixer to Single or P.P. Grid *50/200 10000/40000 0.6 809 MIC to Mixer to Base *50/200 600/2400 0.6 812 Line or 150 ohm MIC to 1 or 2 Grids *125/500 (150/600) 10K/40K (12K/48K) 0.4 813 Line or 150 ohm MIC to Base *125/500 (150/600) 600/2400 (720/2880) 0.4 832 Interstage (ratio 1:2) 5K/20K 20K/80K 0 834 Interstage (ratio 1:4) 5K/20K 10K/40K 0 835 Interstage (ratio 1:1) 10K/40K 10K/40K 0 841 ** P.P. Plates to Line 5K/20K 50/200 0 842 ** P.P. Plates to Line 5K/20K (6K/24K) 125/500 (150/600) 0 844 ** P.P. Plates to Line 10K/40K (12K/48K) 125/500 (150/600) 0 NOTES: * Electrostatic shield between primary & secondary ** Single plate requires parallel feed. When operating at impedances below nominal, power capability is lower and the frequency spectrum is shifted downward, conversely, at higher impedances power capability and frequency spectrum will be shifted upward. https://www.hammfg.com/electronics/transformers/audio/800 1/2 9/5/2018 Audio Broadcast Quality (800 Series) - Hammond Mfg. Data subject to change without notice © 2018. Hammond Manufacturing Ltd. All rights reserved. https://www.hammfg.com/electronics/transformers/audio/800 2/2