Ortofon OM 78 magnetic cartridge
The OM 78 is a is a magnetic cartridge (MM) with a 65µm spherical stylus that is perfect for playback of 78rpm records, which require a larger stylus profile for proper playback.
| Technical data |
|
| Output voltage at 1000 Hz, 5cm/sec. |
4 mV, Lateral (mono) |
| Frequency range at - 3dB |
20-15.000 Hz |
Tracking ability at 315Hz at recommended tracking force *)
|
70 µm |
| Compliance, dynamic, lateral |
15 µm/mN |
| Stylus type |
Spherical |
| Stylus tip radius |
R 65 µm |
| Tracking force range |
1,8-2,5 g (18-25 mN) |
| Tracking force, recommended |
2,0 g (20 mN) |
| Tracking angle |
20° |
| Internal impedance, DC resistance |
750 Ohm |
| Internal inductance |
450 mH |
| Recommended load resistance |
47 kOhm |
| Recommended load capacitance |
200-600 pF |
| Cartridge colour, body/stylus |
Black/Black |
| Cartridge weight |
5 g |
| Replacement stylus unit |
Stylus 78 |
|
Ortofon A/S | Stavangervej 9 | DK-4900 Nakskov | Denmark | Tel. +45 54 91 19 15 | Fax +45 54 91 19 11 |