LL2765
Headphone Amplifier Output Transformer
The LL2765 is a three sectioned, dual coil, C-core output transformer for headphone amplifier applications.
LL2765 is available in PP (Push-Pull) and SE (Single-End) versions.
The coil is wound using our standard high internal isolation technique with isolation foil between each copper layer. The core is an audio C-core of our own production.
| Weight : | 1.3 kg | |
| Static resistance of each primary : | 75 Ω | |
| Static resistance of each secondary (Pins 2 - 4 and 7 - 9) : | 3.5 Ω | |
| Static resistance of each secondary (Pins 3 - 5 and 8 - 10) : | 4.5 Ω | |
| Max recommended DC current through primary windings : | 180mA (5W heat dissipation) | |
| Isolation between windings / between windings and core : | 4 kV / 2 kV | |
| Frequency response | LL2765/PP | LL2765/30mA |
| Primary inductance (primaries in series) | 170 H | 64 H |
| Max primary signal at 30 Hz (primaries in series) | 370V r.m.s. (PP usage) | 160V r.m.s. (SE usage) |
Suggested use
| Weight : | Suggested connection alternative | Turns ratio | Primary impedance (ohms) |
| 32 Ω | A | 12:1 | 4.6 kΩ |
| 150 Ω | B | 6:1 | 5.4 kΩ |
| 600 Ω | C | 3:1 | 5.4 kΩ |
Associated downloads
