Transformers

1750R

Active

Hammond Manufacturing

AUDIO TRANSFORMER 11.11:1 2250VRMS 25.72OHM/12.86OHM PRIM. DCR 0.222OHM SEC. DCR 7 TERMINAL WIRE LEAD FLANGE MOUNT

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Documents1750 Series Catalog Page

Transformers

1750R

Active

Hammond Manufacturing

AUDIO TRANSFORMER 11.11:1 2250VRMS 25.72OHM/12.86OHM PRIM. DCR 0.222OHM SEC. DCR 7 TERMINAL WIRE LEAD FLANGE MOUNT

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Documents1750 Series Catalog Page

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	1750R

DC Resistance (DCR) - Primary	25.72 Ohm, 12.86 Ohm
DC Resistance (DCR) - Secondary	222 mOhm
Frequency Range [Max]	12 kHz
Frequency Range [Min]	50 Hz
Frequency Response	1 dB
Height - Seated (Max) [Max] [z]	4.623 in
Height - Seated (Max) [Max] [z]	117.42 mm
Impedance - Primary (Ohms)	2kCT
Impedance - Secondary (Ohms)	8 Ohms, 4 Ohms, 16 Ohms
Mounting Type	Chassis Mount
Power Level	100 W
Size / Dimension [x]	95.25 mm
Size / Dimension [x]	3.75 "
Size / Dimension [y]	99.97 mm
Size / Dimension [y]	3.936 in
Termination Style	Wire Leads
Transformer Type	Push-Pull Audiophile, Ultra-Linear - Tube Output
Turns Ratio - Primary:Secondary [Max]	1
Turns Ratio - Primary:Secondary [Min]	11.11
Weight	283.5 g
Weight	0.625 lb

1750 Series

Part	Weight	Weight	Power Level	Impedance - Secondary (Ohms)	Height - Seated (Max)	Height - Seated (Max) [Max]	Frequency Range [Max]	Frequency Range [Min]	Turns Ratio - Primary:Secondary	Mounting Type	Impedance - Primary (Ohms)	Size / Dimension [y]	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [x]	Termination Style	DC Resistance (DCR) - Secondary	Transformer Type	Frequency Response	Operating Temperature [Min]	Operating Temperature [Max]	Height - Seated (Max) [Max] [z]	Height - Seated (Max) [Max]	Voltage - Isolation	Turns Ratio - Primary:Secondary [custom]	Turns Ratio - Primary:Secondary [custom]	DC Resistance (DCR) - Primary	Height - Seated (Max) [Max] [z]	Turns Ratio - Primary:Secondary [Max]	Turns Ratio - Primary:Secondary [Min]	Height - Seated (Max) [Max] [z]	DC Resistance (DCR) - Primary [custom]	Size / Dimension [y]
Hammond Manufacturing 1750Q	283.5 g	0.625 lb	50 W	4 Ohms 8 Ohms 16 Ohms	96.85 mm	3.813 in	12 kHz	50 Hz	21.46:1	Chassis Mount	7.371kCT	3.28 "	79.38 mm	83.31 mm	3.125 "	Wire Leads	120 mOhm 190 mOhm 270 mOhm	Push-Pull Audiophile Ultra-Linear - Tube Output	1 dB
Hammond Manufacturing 1750RA			100 W	8 Ohms			12 kHz	65 Hz		Chassis Mount						Wire Leads		Push-Pull Audiophile Ultra-Linear - Tube Output	1 dB	-40 C	105 ░C	3.796 in	96.42 mm	2500 Vrms
Hammond Manufacturing 1750H	283.5 g	0.625 lb	20 W	8 Ohms	60.22 mm		15 kHz	70 Hz		Chassis Mount	6.6kCT	2.4 in	94.23 mm	60.96 mm	3.71 "	Wire Leads	470 mOhm	Push-Pull Audiophile Ultra-Linear - Tube Output	1 dB			2.371 in			1	28.72	428 Ohm
Hammond Manufacturing 1750U	283.5 g	0.625 lb	100 W	4 Ohms 8 Ohms 16 Ohms			12 kHz	50 Hz		Chassis Mount	1.7kCT	4.02 in	95.25 mm	102.11 mm	3.75 "	Wire Leads	100 mOhm 120 mOhm	Push-Pull Audiophile Ultra-Linear - Tube Output	1 dB			4.6 "			1	10.4	15.36 Ohm 16.56 Ohm	116.84 mm
Hammond Manufacturing 1750R	283.5 g	0.625 lb	100 W	4 Ohms 8 Ohms 16 Ohms			12 kHz	50 Hz		Chassis Mount	2kCT	3.936 in	95.25 mm	99.97 mm	3.75 "	Wire Leads	222 mOhm	Push-Pull Audiophile Ultra-Linear - Tube Output	1 dB			4.623 in					12.86 Ohm 25.72 Ohm	117.42 mm	1	11.11
Hammond Manufacturing 1750M	283.5 g	0.625 lb	60 W	2 Ohms 4 Ohms 8 Ohms		3.563 "	15 kHz	70 Hz	22.93:1	Chassis Mount	4.2kCT	3.05 in	102.87 mm	77.47 mm	4.05 in	Wire Leads	160 mOhm	Push-Pull Audiophile Ultra-Linear - Tube Output	1 dB				90.5 mm				68 Ohm
Hammond Manufacturing 1750F	283.5 g	0.625 lb	15 W	8 Ohms			15 kHz	70 Hz		Chassis Mount	6.95kCT	1.687 "	82.55 mm	42.85 mm	3.25 "	Wire Leads		Push-Pull Audiophile Ultra-Linear - Tube Output	1 dB						1	29.19	97.36 Ohm 194.7 Ohm	2.058 in			52.27 mm
Hammond Manufacturing 1750V	283.5 g	0.625 lb	30 W	8 Ohms 16 Ohms			15 kHz	70 Hz		Chassis Mount	4kCT	3.325 in	79.38 mm	84.46 mm	3.125 "	Wire Leads	720 mOhm	Push-Pull Audiophile Ultra-Linear - Tube Output	1 dB			3.843 in			1	15.93		97.61 mm				138 Ohm
Hammond Manufacturing 1750G	283.5 g	0.625 lb	50 W	4 Ohms 8 Ohms 16 Ohms		3.873 in	12 kHz	50 Hz		Chassis Mount	3.8kCT		95.25 mm	3.32 in 84.33 mm		Wire Leads	250 mOhm	Push-Pull Audiophile Ultra-Linear - Tube Output	1 dB				98.37 mm		1	14.21	95.61 Ohm
Hammond Manufacturing 1750P	283.5 g	0.625 lb	50 W	2 Ohms 4 Ohms 8 Ohms 16 Ohms	80.98 mm		12 kHz	50 Hz	14.24:1	Chassis Mount	3.4kCT	3.09 in	95.25 mm		3.75 "	Solder Lug	120 mOhm 150 mOhm 210 mOhm	Push-Pull Audiophile Ultra-Linear - Tube Output	1 dB			3.188 "					40.5 Ohm 41.3 Ohm 81.8 Ohm						78.49 mm