1760E

Hammond Mfg. Co. Ltd., Electronics Division www.hammondmfg.com 1760E PRIMARY • • • • • BLK COM YEL 4 Ohm GRN 8 Ohm BRN TUBE GUITAR AMPLIFIER - OUTPUT TRANSFORMER • SECONDARY Designed for drop in replacement of original units. Constructed to look similar to original factory units (where possible). Material used & design specifications were kept as close as possible to the original part to preserve the stock "tone". Open style with minimum 9" long primary and secondary leads Frequency response 70Hz - 15KHz (0/-1dB reference @ 1KHz) Distortion is less than 1% @ 70Hz 8500 CT Ohm RED WHT 16 Ohm BLU 15 WATTS 70Hz - 15kHz ELECTRICAL SPECIFICATIONS Characteristics Input Impedance Output Impedance Output Power Typical 8500 Ohms 4, 8 & 16 Ohms 15W BLK 17 C DCR Primary Brown-Red Primary Red-Blue Secondary Black-Yellow Secondary Black-Green Secondary Black-White 154.40 Ohms 159.20 Ohms 0.410 Ohm 0.540 Ohm 0.830 Ohm HA M MA MO N U ND FA CT U @ 1.0 kHz, 1.0 V OC 21.60H 129 KOhm Leakage Inductance Primary Brown-Blue @ 1.0 kHz, 1.0 V SC 323.9mH Dielectric Strength Temperature Range 1500VRMS -40 to 105 degC TEST CONDITIONS Measurement instruments: D scope series iii audio analyzer Wayne Kerr 3255B with a 3265B A WHT B RIN G D G BRN NOTE: ALL LEADS 9" LONG MIN. Dimensions A 3.250” ±0.063 B 2.085” ±0.125 C 1.995” ±0.063 D G 2.813” ±0.063 0.187” X 0.300” ±0.015 TYPICAL TEST CIRCUIT PRIMARY Keithley 2010 DVM Hp4192a impedance analyzer E BLU RED Inductance Impedance Primary Brown-Blue 60 R S/ SECONDARY 2 RL * All graphs input level 27dBu @1.0KHz reference. **The results are typical and are subject to normal manufacturing and electrical tolerances. YEL GRN B D A LK / T E Y E B R N 15 W L /G RN - RE A TT S D / MA WH T - B 7 D E : C LU : 0H z IN O M 8 5 - 1 5 CA /4 00 kH z NA DA /8 C T / 16  R S/ OUT 2 www.hammondmfg.com 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 permission of Hammond Manufacturing. Data subject to change without notice. www.hammondmfg.com