| 1.Weight Net |
app.200grms |
| Head Assembly |
app.85grms(excluding cord) |
| 2.Cord Length |
115cm |
| 3.Performance Characteristics |
|
| Transmitter (including amplifier) |
| a) Available Power Response |
-54dB}7dB at1000 Hz load resitance;23¶with 50mA
DC |
| b) DC Resistance : app.80¶ with
50 mA DC |
app.80¶ with 50mA DC |
| c) Frequency Range: 300 to 3400Hz |
300 to 3400Hz |
| d) Operation Current Range :
20 to 100mA |
20 to 100mA |
| Receiver |
| a) Sensitivity |
71dB}6dB at 1000Hz input; 0.5mW |
| b) Impedance |
160¶}50¶ at 1000Hz |
| c) Frequency Range |
300 to 3400Hz |
| 4.Insulation Resistance |
|
| a) Between Plug Tips & Sleeves |
Not less than 50M¶ at 250 VDC |
| b) Between Plug Sleeves &
Plug Casa Screw |
Not less than 50M¶ at 250 VDC |
| c) Between Plug Tips & Voice
Tube |
Not less than 50M¶ at 250 VDC |