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| Part Number | 1750J | 1750JA |
| Manufacturer | Hammond Manufacturing | Hammond Manufacturing |
| Series | 1750 | 1750 |
| Packaging | Box | Bulk |
| Product Status | Active | Active |
| Turns Ratio - Primary:Secondary | 31.11:1 | - |
| Impedance - Primary (Ohms) | 4kCT | 4.25kCT |
| Impedance - Secondary (Ohms) | 4 | 4, 8 |
| DC Resistance (DCR) - Primary | 185Ohm | 82Ohm, 108.3Ohm |
| DC Resistance (DCR) - Secondary | 400mOhm | 253mOhm, 462mOhm |
| 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 | 35W | 40W |
| Operating Temperature | - | - |
| Approval Agency | - | - |
| Mounting Type | Chassis Mount | Chassis Mount |
| Size / Dimension | 4.076" L x 3.170" W (103.53mm x 80.52mm) | 2.500" L x 3.150" W (63.50mm x 80.01mm) |
| Height - Seated (Max) | 2.630" (66.80mm) | 3.319" (84.30mm) |
| Termination Style | Wire Leads | Wire Leads |
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