1760H

Hammond Mfg. Co. Ltd., Electronics Division www.hammondmfg.com 1760H PRIMARY TUBE GUITAR AMPLIFIER - OUTPUT TRANSFORMER • • • • • • SECONDARY BRN 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 RED 6600 CT Ohm BLU WHT 16 Ohm GRN 8 Ohm YEL 4 Ohm BLK COM 70Hz - 15kHz 20W BLK YEL ELECTRICAL SPECIFICATIONS Characteristics Input Impedance Output Impedance Output Power Typical 6600 Ohms 4, 8 & 16 Ohms 20W DCR Primary Brown-Blue Secondary Black-Yellow Secondary Black-Green Secondary Black-White 347.8 Ohms 0.686 Ohm 0.803 Ohm 1.157 Ohm C HA MA MMO NU N D FA CT U @ 1.0 kHz, 1.0 V OC 25.8H 157 KOhm Leakage Inductance Primary Brown-Blue @ 1.0 kHz, 1.0 V SC 12.30 mH Dielectric Strength Temperature Range 1500VRMS -40 to 105 degC A D G NOTE: ALL LEADS 9" LONG MIN. Dimensions A 3.688” ±0.063 B 2.400” ±0.125 C 2.308” ±0.063 D G 3.125” ±0.063 0.187” ±0.015 TYPICAL TEST CIRCUIT PRIMARY Keithley 2010 DVM Hp4192a impedance analyzer G BRN TEST CONDITIONS Measurement instruments: D scope series iii audio analyzer Wayne Kerr 3255B with a 3265B B R IN BLU RED Inductance Impedance Primary Brown-Blue 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. GRN WHT BL DA K/Y TE EL/ BLU 20W GR - R AT 176 N/W ED TS 0H MA HT: - BR 70H DE CO N: z IN M 66 - 1 CA /4  00 5kHz NA /8 C DA /1 T 6  R S/ OUT 2 www.hammondmfg.com RL R S/ OUT 2 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