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. Nominal Impedance 1 6 Part No. Primary Secondary Max. Pri. D.C. ma 2 5 3 4 141B 141D 141F 141H 141M 141P 200K 3000 C.T. 25K 600 C.T. 30K 1200 C.T. 1000 1000 C.T. 50 600 C.T. 1200 C.T. 8 0 1 2 2 2 2 SEC Secondary 85 51 65 45 47 0.45 Output Milliwatts 4 150 100 150 100 150 Audio PRI D.C. Resistance Primary 3775 120 1645 32 1100 50 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. 140A 140B 140C 140H 140K 140M 140N 140P 140Q Application Voice Coil to Single Grid Dyn. MIC. to Single Grid MIC. to Single Grid Bridging Line to P.P. Grids MIC. to Single Grid CRYS, MIC. to Base Dyn. MIC to Base Line to Base Line to Line Nominal Impedance Primary Secondary 4 60000 30 60000 50 60000 10000 40000 C.T. 150 60000 100K 1500 50 1500 150/600 600/2400 600 C.T. 600 C.T. CANADA © EUROPE Guelph, Ontario (519) 822-2960 St. Laurent, Quebec (514) 343-9010 www.hammondmfg.com Cheektowaga, NY (716) 630-7030 74 USA Overall Turns Ratio Pri. to Sec. 1:122 1:45 1:34.5 1:2 1:2 8:1 1:5.5 1:2 1:1 Basingstoke, UK 01256 812812 AUSTRALIA Queenstown, Australia 61-8-8240-2244 Chassis Mount (143-146 Series) CHASSIS MOUNT AUDIO TRANSFORMERS Series No. 143... 144... 145... 146... A 1.35 1.35 1.63 1.63 Dimensions (Inches) B C D 0.69 0.69 1.06 0.69 0.69 1.06 0.88 0.81 1.38 0.88 0.81 1.38 Green Red Black PRI Part No. SEC Green Black Red Yellow PRI SEC Schematic 2 Blue Green Red Brown Black PRI SEC Schematic 3 Blue Green Red Black Brown Yellow PRI Nominal Impedance Primary 143B Input 3.2 143D Input 200K 143H Driver 1500 143J Driver 3000 143L Driver 10000 143N Driver 10000 143R Driver 25000 144B Output 200 C.T. 144D Output 300 C.T. 144F Output 500 C.T. 144G Output 500 C.T. 144H Output 500 C.T. 144I Output 600 C.T. 144P Output 10000 144Q Output 10000 144S Output 20000 145A Driver 100 145B Driver-Output 600 145C Input 50000 145D Input 200K 145E Input-Output 600 C.T. 145F Driver 600 C.T. 145G Driver 2000 145H Driver 2000 145J Driver 4000 145L Driver 4000 145N Driver 10000 145O Driver 15000 145P Driver 20000 145R Driver 20000 146B Output 48 C.T. 146C Output 48 C.T. 146D Output 100 C.T. 146E Output 100 C.T. 146F Output 250 C.T. 146G Output 250 C.T. 146H Output 500 C.T. 146I Output 500 C.T. 146J Output 1000 C.T. 146K Output 1000 C.T. 146N Output 2000 C.T. 146S Output 4000 C.T. Schematic 1 Blue Application SEC Schematic 4 Secondary 4000 1000 500 C.T. 1000 C.T. 200 C.T. 2000 C.T. 600 C.T. 3.2 3.2 3.2 8 50 150 C.T. 3.2 8 8 200 C.T. 600 1500 C.T. 1000 600 C.T. 200 C.T. 200 C.T. 500 C.T. 600 C.T. 2600 C.T. 2000 C.T. 200 C.T. 1000 C.T. 2000 C.T. 3.2 8 3.2 8 3.2 8 3.2 8 3.2 8 8 8 Pri. D.C. Resistance +/- 15% Output D.C. mW Primary Secondary (*1) ma 0 0.4 245 15 0 4500 30 25 4 111 24 30 2.6 265 53 30 1.5 720 9 30 1.5 720 89 30 1 1890 25 30 10 10 0.33 150 9 15 0.33 150 6 27 0.33 150 6 27 0.9 150 6 28 7.3 150 6 45 8.2 150 5 575 0.5 50 5 575 0.9 50 3.5 1240 0.9 50 45 14 19 100 18 30 38 200 1 2400 52 50 0.5 3600 33 10 5 65 83 200 20 45 9 135 12 140 9 135 12 148 17 135 8 340 24 135 8 340 100 135 5 700 89 135 4 850 10 135 3.5 1180 50 135 3.5 1180 89 135 20 2.4 0.3 700 20 2.4 0.7 700 14 4.4 0.3 700 14 4.4 0.7 700 8 11 0.3 700 8 11 0.7 700 6 26 0.3 700 6 26 0.7 700 4 56 0.3 700 4 56 0.7 700 3 97 0.7 700 2 220 0.7 700 Sch. 1 1 2 2 2 2 2 3 3 3 3 3 4 1 1 1 2 1 2 1 4 4 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 Audio Blue • 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 our 148 & 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). NOTES: *1) For output transformers this figure is maximum unbalance. EUROPE Basingstoke, UK 01256 812812 AUSTRALIA Queenstown, Australia 61-8-8240-2244 CANADA www.hammondmfg.com Guelph, Ontario (519) 822-2960 St. Laurent, Quebec (514) 343-9010 75 Cheektowaga, NY (716) 630-7030 USA ©