1 / 8 / 2 2 , 1 0 : 3 5 A M U n i v e r s a l S i n g l e E n d e d T u b e O u t p u t ( 1 2 5 S E S e r i e s ) - H a m m o n d M f g . Quality Products. Service Excellence. Universal Single Ended Tube Output 125SE Series Audio Features 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 (+/- 1db max. - ref. 1 Khz). 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. Gallery Audio Power Max. D.C. Bias Weight Dimensions Mounting Hole Part No. (Watts) (ma) ( lbs.) A B C D E G 125ASE 3 25 0.5 2.81 1.35 1.69 2.38 - 0.19 125BSE 5 45 1.1 3.25 1.63 2.00 2.81 - 0.19 125CSE 8 60 1.3 3.69 1.86 2.31 3.13 - 0.19 125DSE 10 70 2 4.00 2.10 2.63 3.56 - 0.19 125ESE 15 80 3 4.50 2.36 2.94 4.00 - 0.19 125FSE 20 90 4.5 3.76 2.52 3.15 3.13 2.25 0.20 x 0.38 125GSE 25 100 6 4.15 2.88 3.46 3.45 2.50 0.20 x 0.38 Primary Winding Data Inductance DC Resistance Part No. (Minimum) (+/- 20%) 125ESE 5.43 H 103 Ohms 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 2 5 s e 1 / 21 / 8 / 2 2 , 1 0 : 3 5 A M U n i v e r s a l S i n g l e E n d e d T u b e O u t p u t ( 1 2 5 S E S e r i e s ) - H a m m o n d M f g . 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 2 5 s e 2 / 2