1750H

Hammond Mfg. Co. Ltd., Electronics Division www.hammondmfg.com 1750H PRIMARY TUBE GUITAR AMPLIFIER - OUTPUT TRANSFORMER • • • • • • 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/-1.0dB reference @ 1KHz) Distortion is less than 1% @ 70Hz SECONDARY BLK COM BLU 6600 Ohm CT RED BRN GRN 8 Ohm 20 WATTS 70Hz - 15kHz BLK ELECTRICAL SPECIFICATIONS Characteristics Input Impedance Output Impedance Output Power DA TE Typical 6600 Ohms 8 Ohms 20W C GRN BR 12 N 0 BL - R WAT K ED T MA - GR - B S 7 DE N: LU 0H I N 8 Ω: 66 z - 1 CA 00 Ω 5k H NA CT z DA 17 50 H B DCR Primary Brown-Blue Secondary Black-Green 428.0 Ohms 0.410 Ohm BLU D RED Inductance Impedance Primary Brown-Blue Secondary Black-Green @ 1.0 kHz, 1.0 V OC 21.4H 132.0 Kohm 27.36mH 680.1 Ohms A G BRN NOTE: ALL LEADS 9" LONG MIN. Leakage Inductance Primary Brown-Blue @ 1.0 kHz, 1.0 V SC 13.54mH 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 Dimensions A 3.7100” ±0.063 B 2.4000” ±0.125 C 2.308” ±0.063 3.130” ±0.063 0.187” ±0.015 TYPICAL TEST CIRCUIT PRIMARY Keithley 2010 DVM Hp4192a impedance analyzer D G 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. 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