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| Part Number | 124A |
| Datasheet | 124A datasheet |
| Description | TRANSFORMER TUBE DRIVER CLASSIC |
| Manufacturer | Hammond Manufacturing |
| Series | 124 |
| Part Status | Active |
| Turns Ratio - Primary:Secondary | 1:3 |
| Impedance - Primary (Ohms) | 10k |
| Impedance - Secondary (Ohms) | 90kCT |
| DC Resistance (DCR) - Primary | 405 Ohm |
| DC Resistance (DCR) - Secondary | 1.525 kOhm |
| Transformer Type | Tube Driver and Speaker Matching |
| Frequency Range | 150Hz ~ 15kHz |
| Frequency Response | ±1dB |
| Voltage - Isolation | 500Vrms |
| Insertion Loss | - |
| Return Loss | - |
| Power Level | 5W |
| Operating Temperature | - |
| Approvals | - |
| Mounting Type | Chassis Mount |
| Size / Dimension | 2.380" L x 1.350" W (60.45mm x 34.29mm) |
| Height - Seated (Max) | 1.430" (36.32mm) |
| Termination Style | Wire Leads |