125ESE

Hammond Mfg. Co. Ltd., Electronics Division www.hammondmfg.com 125ESE UNIVERSAL SINGLE ENDED TUBE OUTPUT TRANSFORMER         Designed for general purpose or replacement use (not Hi-Fi), in single ended, tube output circuits. Frequency response: 100 Hz. - 15 Khz at full rated power (see graphs for detailed response). For full frequency response (20 Hz. to 20 Khz.) - see our 1627-1642 Series. For push-pull output use, see our 125 Series. Open style with minimum 12" long primary & secondary leads. All sizes use butt stacked cores (using 29M6 steel) with an air gap, to reduce D.C. core saturation. Primary impedance range from 2,500 to 10,000 Ohms. Secondary impedance range from 4 to 32 Ohms. WHT YEL GRN BLU ORG BLK BRN Hammond Mfg. Co. Ltd., Electronics Division ELECTRICAL SPECIFICATIONS** Characteristic Input Impedance Output Impedance Output Power Max. DC Bias Primary - DCR Blue – Brown Secondary DCR Black – Orange Black – Green Black – Yellow Black – White Inductance Primary – Blue – Brown Sec – Black – Orange Sec – Black – Green Sec – Black – Yellow Sec – Black – White Impedance Primary – Blue – Brown Sec – Black – Orange Sec – Black – Green Sec – Black – Yellow Sec – Black – White Frequency Response Dielectric Strength Temperature Range Typical 2500 - 10000  4/8/16/32  15 Watts 80 mA www.hammondmfg.com Schematic and Hook Up Data PRIMARY SECONDARY WHT 32  @ 10,000 PRI 16  @ 5,000 PRI 8  @ 2,500 PRI BRN 103.0  167 m 225 m 297 m 412 m @ 1.0 kHz, 1.0 V OC 5.43 Hy 3.70 mH 8.20 mH 16.2 mH 32.1 mH @ 1.0 kHz, 1.0 V OC 33.8 K 22.8  49.5  98.0  200.0  See graphs for specific response, Typ. 1.0db from 100Hz to 15KHz 1500Vrms -40 To 105C YEL 16  @ 10,000 PRI 8  @ 5,000 PRI 4  @ 2,500 PRI 10,000  OR 5,000  GRN 8  @ 10,000 PRI 4  @ 5,000 PRI OR 2,500  ORG 4  @ 10,000 PRI BLU BLK 0 125ESE SINGLE ENDED AUDIO 15W 80mA DC PRI: 10,000; 5,000; 2,500 OHM SEC: 4, 8, 16, 32 OHM DATE CODE MADE IN CANADA Hammond Mfg. Co. Ltd., Electronics Division www.hammondmfg.com Hammond Mfg. Co. Ltd., Electronics Division www.hammondmfg.com Hammond Mfg. Co. Ltd., Electronics Division www.hammondmfg.com PRIMARY TYPICAL TEST CIRCUIT R S/ SECONDARY 2 RL R S/ OUT 2 Measurement instruments Hp4192a impedance analyzer Hp3456a DVM Keithley 2002 DVM D scope series iii audio analyzer Wayne Kerr 3255B with a 3265B * All graphs input level 20dbu. ** The results are typical and are subject to normal manufacturing and electrical tolerances. This drawing and the information in it is the property of Hammond Manufacturing. It may not be reproduced, transmitted or used in any manner whatsoever without the written permissio n of Hammond Manufacturing. Data subject to change without notice.