1760C

Hammond Mfg. Co. Ltd., Electronics Division 1760C PRIMARY RED 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/-1dB reference @ 1KHz) Distortion is less than 1% @ 70Hz YEL 3.2 Ohm 5000 Ohm 8000 Ohm GRN BRN BLU 5 WATTS 70Hz - 15kHz BLK Typical 5000/8000 Ohms 3.2, 8 & 16 Ohms 5W 40mA DCR Primary Blue-Red Primary Brown-Red Secondary Black-Yellow Secondary Black-Green Secondary Black-White 359.90 Ohms 272.08 Ohms 0.278 Ohm 0.624 Ohm 1.491 Ohm Inductance Impedance Primary Blue-Red Primary Brown-Red Secondary Black-Yellow Secondary Black-Green Secondary Black-White @ 1.0 kHz, 1.0 V OC 23.0H 132KOhm 16.2H 92KOhm 76.70mH 153.85 Ohm 170.65mH 373.8 Ohm 305.10mH 729.0 Ohm Leakage Inductance Blue-Red Brown-Red @ 1.0 kHz, 1.0 V SC 719.5mH 583.0mH Dielectric Strength Temperature Range 1750VRMS -40 to 105 degC TEST CONDITIONS Measurement instruments: D scope series iii audio analyzer Wayne Kerr 3255B with a 3265B C HA M MA MO NU ND FA CT U RED A BLU GRN WHT 60 C B R IN G D G NOTE: ALL LEADS 9" LONG MIN. Dimensions A 2.813” ±0.063 B 1.560” ±0.125 C 1.683” ±0.063 D G 2.375” ±0.063 0.187” ±0.015 TYPICAL TEST CIRCUIT PRIMARY R S/ SECONDARY 2 RL Keithley 2010 DVM Hp4192a impedance analyzer * All graphs input level 27dBu @1.0KHz reference. **The results are typical and are subject to normal manufacturing and electrical tolerances. YEL B RED D A L K /Y / B TE EL RN 5 W /G / B A T RN L T /W U : S M A H T : C O 70 H DE C M / z IN O M / 5 0 0 - 1 5 k CA 3.2 0 Hz NA  / DA /8 800 /16 0  17 BLU 8 Ohm WHT 16 Ohm ELECTRICAL SPECIFICATIONS Characteristics Input Impedance Output Impedance Output Power Maximum PRI DC SECONDARY BLK COM R S/ OUT 2 Release 2: 02.12.2021 www.hammfg.com www.hammfg.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.hammfg.com