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| Part Number | 1750K | 1750KA | 1750KAX |
| Manufacturer | Hammond Manufacturing | Hammond Manufacturing | Hammond Manufacturing |
| Series | 1750 | 1750 | - |
| Packaging | Box | Bulk | Bulk |
| Product Status | Active | Active | Active |
| Turns Ratio - Primary:Secondary | 44.67:1 | - | - |
| Impedance - Primary (Ohms) | 4kCT | 4.15kCT | - |
| Impedance - Secondary (Ohms) | 2 | 2 | - |
| DC Resistance (DCR) - Primary | 43.16Ohm, 46.28Ohm | 45.53Ohm, 49.09Ohm | - |
| DC Resistance (DCR) - Secondary | 180mOhm | 140mOhm | - |
| Transformer Type | Push-Pull Audiophile, Ultra-Linear - Tube Output | - | - |
| Frequency Range | 70Hz ~ 15kHz | 70Hz ~ 15kHz | - |
| Frequency Response | ±1dB | ±1dB | - |
| Voltage - Isolation | - | 2000V @ 1 Second | - |
| Insertion Loss | - | - | - |
| Return Loss | - | - | - |
| Power Level | 50W | 50W | - |
| Operating Temperature | - | - | - |
| Approval Agency | - | - | - |
| Mounting Type | Chassis Mount | Chassis Mount | - |
| Size / Dimension | 4.063" L x 3.125" W (103.20mm x 79.38mm) | 4.050" L x 3.136" W (102.87mm x 79.65mm) | - |
| Height - Seated (Max) | 3.516" (89.31mm) | 3.563" (90.50mm) | - |
| Termination Style | Wire Leads | Wire Leads | - |
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