SPECIFICATION
▷ Type : Carbon Granule
▷ Sensitivity : -52 +- 5dB (1KHz)
▷ Impedance : 35 ohm +- 3.5 ohm
▷ Frequency Range : 300~ 4,000 Hz
▷ Noise : less than 96dB
▷ Termination : Contact Ring
▷ Dimensions(inch) : dia 1.799
▷ Weight : 18.3g
▷ Ambient Temperature Range : -40 ℉ ~ 150 ℉
▷ Humidity : Max 95% RH
▷ Use : Antique Telephone (TA-291 st.), (TA-236 st.), (TA-312/PT st.), (H-60/PT st.)
▷ FSN : 5965-925-5112