1650NA

Hammond Mfg. Co. Ltd., Electronics Division www.hammondmfg.com 1650NA HI-FI AUDIO OUTPUT MULTIPLE SECONDARY TRANSFORMER  NEW & improved version of our 1608-1650 Series multiple secondary output transformers (Re-designed secondaries for easy hook-up of secondary loads).  Designed for push-pull tube output circuits.  Units are designed to provide ample "headroom" at bass frequencies (Note the weight of each transformer).  Enclosed (shielded), 4 slot, above chassis Type "X" mounting.  Manufactured with plastic coil forms for coil support and insulation.  Frequency response 30Hz. to 30Khz (+/- 1db max. - ref. 1Khz) minimum.  Insulated flexible leads 8" min.  Typical applications - Push-Pull: triode, Ultra-Linear pentode, pentode and tetrode connected audio output. ELECTRICAL SPECIFICATIONS Characteristic Input Impedance Output Impedance Output Power Typical 4300 Ohms 4, 8 & 16 Ohms 60 Watts DCR Primary Blue-Red Primary Red-Brown Secondary Black-Green Secondary Black-Yellow Secondary Black-White 37.19 Ohms 42.17 Ohms 0.244 Ohm 0.377 Ohm 0.490 Ohm Inductance | Impedance Primary Blue-Brown @ 60Hz, 10.0V OC 85.5H 40.6KOhm Leakage Inductance Primary Blue-Brown @ 60Hz, 10.0V SC 7.20mH Dielectric Strength Temperature Range 2000Vrms -40 To 105C 1650NA Made In Canada DATE Hammond Mfg. Co. Ltd., Electronics Division www.hammondmfg.com DIMENSIONAL DETAILS: BLK GRN YEL WHT BRN BRN/YEL RED BLU/YEL BLU TEST CONDITIONS Measurement Instruments: dScope Series III Audio Analyzer Wayne Kerr 3255B with a 3265B Inductance Analyzer HP 4192a LF Impedance Analyzer Keithley 2010 DVM * All graphs input level 27dBu @1.0KHz reference. **The results are typical and are subject to normal manufacturing and electrical tolerances. TYPICAL TEST CIRCUIT PRIMARY R S/ SECONDARY 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. Hammond Mfg. Co. Ltd., Electronics Division www.hammondmfg.com