149H

148D HAMMOND | Alldatasheet

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Basingstoke, UK 01256 812812 AUSTRALIA Queenstown, Australia 61-8-8240-2244 CANADA Guelph, Ontario (519) 822-2960 St. Laurent, Quebec (514) 343-9010 USA Cheektowaga, NY (716) 630-7030 www.hammondmfg.com P.C. Board Mount (148-149 Series) P.C. BOARD MOUNT AUDIO TRANSFORMERS Economical, open type, horizontal bracket construction. 149 Series includes clinching lugs for extra mounting • strength. Total distortion approximately 2% for drivers and 1% for outputs at 200 Hz., decreasing at higher frequencies. • Insertion loss less than 1/2 db. • Bifilar wound for balanced capacitive and resistance characteristics, on pin bobbins for standard 0.2" grid pin spacing. • Insulation test 250V RMS. • For rugged epoxy cast type units refer to our 102, 104, 106, or 107, 108 & 109 series. • NOTES: *1) For output transformers the current figure is for maximum unbalanced current *2) D.C. resistance shown is for the total primary or secondary windings (ie: if unit contains multiple primary or secondary windings the figure shown is with the windings connected in series). Part No. Application Nominal Impedance Pri D.C. (*1) ma. D.C. Resistance +/- 15% (*2) Output Milliwatts Dwg. FigurePrimary Secondary Primary Secondary 148A Input 150/600 600/2400 1.9 45 300 300 1 148B Input 150 400/1600 3.8 11.3 200 300 2 148C Input 50000 250/1000 0 1760 25.4 12 2 148D Input 200K 1000 0 1760 6.2 3 3 148E Driver 500 125/500 18 79 60 75 2 148F Driver 1500 125/500 11.6 220 58 75 2 148H Driver 3000 250/1000 7.5 480 107 75 2 148K Driver 4000 500/2000 6.5 540 230 75 2 148M Driver 6000 500/2000 5.3 850 230 75 2 148Q Driver 10000 500/2000 4.1 1700 238 75 2 148R Driver 20000 250/1000 2.4 2230 123 50 2 149C Driver 160 20/80 56 24 6.5 200 2 149E Driver 300 30/120 42 41 9.7 200 2 149F Driver 450 40/160 33 52 19 200 2 149G Driver 600 150/600 29 92 58 200 2 149H Driver 1000 60/240 22 155 24 200 2 149Q Output 200 C.T. 3.2 7 19 0.4 1000 4 149S Output 600 C.T. 150 C.T. 4 53 17 1000 5 149T Output 600 C.T. 600 C.T. 4 53 70 1000 5 149U Output 150/600 8 4 53 95 1000 6 149V Hybrid 600 C.T. 300/1200 4 53 63 1000 7

148 Series

149 Series

Basingstoke, UK 01256 812812 AUSTRALIA Queenstown, Australia 61-8-8240-2244 CANADA Guelph, Ontario (519) 822-2960 St. Laurent, Quebec (514) 343-9010 USA Cheektowaga, NY (716) 630-7030 www.hammondmfg.com P.C. Board & Chassis Mount (140-141 Series) LOW PROFILE - P.C. BOARD MOUNT AUDIO TRANSFORMERS Pin type (0.25" length & 0.035" diameter), P.C. board mount • Low profile, open type construction • Frequency response 200 Hz. - 15 Khz. (+/- 2 db, ref. @ 1 Khz.) • Net weight 0.6 oz.• CHASSIS MOUNT - SHIELDED AUDIO TRANSFORMERS Insulated leads 5" long minimum • Stamped steel case (Diameter of 1.25" and height of 1") for excellent • shielding - low hum pick-up. Frequency response 70 Hz. - 11 Khz. (+/- 1 db, ref. @ 1 Khz.) • Case hole mounting centers are 1.6" • Net weight 2 oz.• Part No. Nominal Impedance Max. Pri. D.C. ma D.C. Resistance Output MilliwattsPrimary Secondary Primary Secondary 141B 200K 1000 0 3775 85 4 141D 3000 C.T. 1000 C.T. 1 120 51 150 141F 25K 50 2 1645 65 100 141H 600 C.T. 600 C.T. 2 32 45 150 141M 30K 1200 C.T. 2 1100 47 100 141P 1200 C.T. 8 2 50 0.45 150 Part No. Application Nominal Impedance Overall Turns Ratio Primary Secondary Pri. to Sec. 140A Voice Coil to Single Grid 4 60000 1:122 140B Dyn. MIC. to Single Grid 30 60000 1:45 140C MIC. to Single Grid 50 60000 1:34.5 140H Bridging Line to P.P. Grids 10000 40000 C.T. 1:2 140K MIC. to Single Grid 150 60000 1:2 140M CRYS, MIC. to Base 100K 1500 8:1 140N Dyn. MIC to Base 50 1500 1:5.5 140P Line to Base 150/600 600/2400 1:2 140Q Line to Line 600 C.T. 600 C.T. 1:1 PRI SEC Audio