1760F

Hammond Mfg. Co. Ltd., Electronics Division www.hammondmfg.com 1760F TUBE GUITAR AMPLIFIER - OUTPUT TRANSFORMER PRIMARY • 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 7" long primary and secondary leads Frequency response 70Hz - 15KHz (0/-2.5dB reference @ 1KHz) Distortion is less than 3% @ 70Hz SECONDARY WHT 16 Ohm GRN 8 Ohm RED 6950 CT Ohm BLU YEL 4 Ohm BLK COM 70Hz - 15kHz 15W ELECTRICAL SPECIFICATIONS Characteristics Input Impedance Output Impedance Output Power Typical 6950 Ohms 4, 8 & 16 Ohms 15W DCR Primary Brown-Blue Secondary Black-Yellow Secondary Black-Green Secondary Black-White BLK BL K/Y C 17 B EL LU- 15 /G RE W RN D/W BR 70H MA HT N: z-1 DE IN : C 69 5k CA OM 50  Hz NA DA /4 CT /8 D 60 AT E Y EL F GRN WHT /16  B 147.90 Ohms 0.171 Ohm 0.245 Ohm 0.476 Ohm BRN A RED D G Inductance Impedance Primary Brown-Blue BLU @ 1.0 kHz, 1.0 V OC 2.56H 15.89 KOhm Leakage Inductance Primary Brown-Blue @ 1.0 kHz, 1.0 V SC 3.68 mH Dielectric Strength Temperature Range 1500VRMS -40 to 105 degC Dimensions A 3.250” ±0.063 B 2.063” ±0.125 C 1.995” ±0.063 Keithley 2010 DVM Hp4192a impedance analyzer D G 2.813” ±0.063 0.187” ±0.015 TYPICAL TEST CIRCUIT TEST CONDITIONS Measurement instruments: D scope series iii audio analyzer Wayne Kerr 3255B with a 3265B NOTE: ALL LEADS 7" OUT MIN. PRIMARY R S/ SECONDARY 2 * All graphs input level 27dBu @1.0KHz reference. **The results are typical and are subject to normal manufacturing and electrical tolerances. RL R S/ OUT 2 www.hammondmfg.com R S/ 2 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