1 / 8 / 2 2 , 1 2 : 2 9 P M A u d i o C h a s s i s M o u n t ( 1 4 3 - 1 4 6 S e r i e s ) - H a m m o n d M f g . Quality Products. Service Excellence. Audio Chassis Mount 143-146 Series Features Small, economical, open, two hole horizontal bracket mount. Insulated, color coded flexible leads, 4 long minimum (143, 144 & 145 Series) or 3 long minimum (146 Series). For a similar, P.C. board mount version, refer to the 148 and 149 series. Frequency response 150 Hz. to 15 Khz. (+/- 1 db, reference 1000 Hz.) When operating at impedances below nominal, power capability and the frequency spectrum are proportionately lower, conversely, at higher impedances power capability and frequency spectrum will be proportionately higher. Net weight: 0.5 oz. (143, 144, 146 Series) & 1.4 oz. (145 Series). Nominal Impedance Primary D.C. Resistance (Ohms) D.C. (Ohms) +/- 15% Output Overall Dimensions Part No. Applicaton Primary Secondary (*1) ma Primary Secondary (mW) A B C D Schematic 143B Input 3.2 4000 0 0.4 245 15 1.00 0.69 0.69 1.06 1 143D Input 200K 1000 0 4500 30 25 1.00 0.69 0.69 1.06 1 143H Driver 1500 500 ct 4 111 24 30 1.00 0.69 0.69 1.06 2 143J Driver 3000 1000 ct 2.6 265 53 30 1.00 0.69 0.69 1.06 2 143L Driver 10000 200 ct 1.5 720 9 30 1.00 0.69 0.69 1.06 2 143N Driver 10000 2000 ct 1.5 720 89 30 1.00 0.69 0.69 1.06 2 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 / 1 4 3 - 1 4 6 1 / 21 / 8 / 2 2 , 1 2 : 2 9 P M A u d i o C h a s s i s M o u n t ( 1 4 3 - 1 4 6 S e r i e s ) - H a m m o n d M f g . Nominal Impedance Primary D.C. Resistance (Ohms) D.C. (Ohms) +/- 15% Output Overall Dimensions Part No. Applicaton Primary Secondary (*1) ma Primary Secondary (mW) A B C D Schematic 143R Driver 25000 600 ct 1 1890 25 30 1.00 0.69 0.69 1.06 2 144B Output 200 ct 3.2 10 10 0 150 1.00 0.69 0.69 1.06 3 144D Output 300 ct 3.2 9 15 0.33 150 1.00 0.69 0.69 1.06 3 144F Output 500 ct 3.2 6 27 0.33 150 1.00 0.69 0.69 1.06 3 144G Output 500 ct 8 6 27 0.9 150 1.00 0.69 0.69 1.06 3 144H Output 500 ct 50 6 28 7.3 150 1.00 0.69 0.69 1.06 3 144I Output 600 ct 150 ct 6 45 8.2 150 1.00 0.69 0.69 1.06 4 144P Output 10000 3.2 5 575 0.5 50 1.00 0.69 0.69 1.06 1 144Q Output 10000 8 5 575 0.9 50 1.00 0.69 0.69 1.06 1 144S Output 20000 8 3.5 1240 0.9 50 1.00 0.69 0.69 1.06 1 145A Driver 100 200 ct 45 14 19 100 1.63 0.88 0.81 1.38 2 145B Driver-Output 600 600 18 30 38 200 1.63 0.88 0.81 1.38 1 145C Input 50000 1500 ct 1 2400 52 50 1.63 0.88 0.81 1.38 2 145D Input 200K 1000 0.5 3600 33 10 1.63 0.88 0.81 1.38 1 145E Input-Output 600 ct 600 ct 5 65 83 200 1.63 0.88 0.81 1.38 4 145F Driver 600 ct 200 ct 20 45 9 135 1.63 0.88 0.81 1.38 4 145G Driver 2000 200 ct 12 140 9 135 1.63 0.88 0.81 1.38 2 145H Driver 2000 500 ct 12 148 17 135 1.63 0.88 0.81 1.38 2 145J Driver 4000 600 ct 8 340 24 135 1.63 0.88 0.81 1.38 2 145L Driver 4000 2600 ct 8 340 100 135 1.63 0.88 0.81 1.38 2 145N Driver 10000 2000 ct 5 700 89 135 1.63 0.88 0.81 1.38 2 145O Driver 15000 200 ct 4 850 10 135 1.63 0.88 0.81 1.38 2 145P Driver 20000 1000 ct 3.5 1180 50 135 1.63 0.88 0.81 1.38 2 145R Driver 20000 2000 ct 3.5 1180 89 135 1.63 0.88 0.81 1.38 2 146B Output 48 ct 3.2 20 2.4 0.3 700 1.63 0.88 0.81 1.38 3 146C Output 48 ct 8 20 2.4 0.7 700 1.63 0.88 0.81 1.38 3 146D Output 100 ct 3.2 14 4.4 0.3 700 1.63 0.88 0.81 1.38 3 146E Output 100 ct 8 14 4.4 0.7 700 1.63 0.88 0.81 1.38 3 146F Output 250 ct 3.2 8 11 0.3 700 1.63 0.88 0.81 1.38 3 146G Output 250 ct 8 8 11 0.7 700 1.63 0.88 0.81 1.38 3 146H Output 500 ct 3.2 6 26 0.3 700 1.63 0.88 0.81 1.38 3 146I Output 500 ct 8 6 26 0.7 700 1.63 0.88 0.81 1.38 3 146J Output 1000 ct 3.2 4 56 0.3 700 1.63 0.88 0.81 1.38 3 146K Output 1000 ct 8 4 56 0.7 700 1.63 0.88 0.81 1.38 3 146N Output 2000 ct 8 3 97 0.7 700 1.63 0.88 0.81 1.38 3 146S Output 4000 ct 8 2 220 0.7 700 1.63 0.88 0.81 1.38 3 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 / 1 4 3 - 1 4 6 2 / 2