Main Products: 7116C 8121C 7117C 138A 152A 139B CLIO LMS SOUNDCHECK DASS
the 139B polarity tester and139B the sensor
USD $80 - $85 /Bag
Min.Order:1 Bag
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Shenzhen BaiChuan Electronics Co., Ltd.
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Business Type: Trading Company
Shenzhen Guangdong ChinaMain Products: 7116C 8121C 7117C 138A 152A 139B CLIO LMS SOUNDCHECK DASSProduct Details
| Not affected in a noisy place, and can judge at once the polarity of any types of loudspeaker and headphone, suitable in production line. Can be linked with 3 other kinds of instruments ( Model-152A , 7117C and 7116C ). Only one person is needed to make the operation, save labor and time . Easy to learn, to operate, high reliability. Has the Positive/Negative indicator extended device, only those Model-139B with serial no. "PLxxxxxxxxx" have this function. (This extended device must be connected with the Extended Pilot (Model-139BL)) In a HI-FI Stereo System, Loudspeaker & Headphone with a correct polarity is very important. If the phase ( polarity ) was reversed, HI-FI Stereo's effectiveness would be seriously affected. 139B is not affected at all in a noisy place, and can judge at once the polarity of the loudspeaker and headphone. 139B can be connected with 152A, 7117K, 7116C to test 4 parameters. Only one operator is needed ( see left page ). 139B is suitable for loudspeaker system, loudspeaker, multimedia, monitor, headphone and audio firms. |
| Specifications of Model - 139B |
| Pulse Testing Method. Polarity : Pos. polarity :Green LED indicator with beep sound. Neg. polarity : Red LED indicator with no sound. WF : suitable for the woofer. M & T : suitable for the midrange, tweeter & headphone. Ext.1 ~ Ext.3 : For connecting instruments. Sensor : ECM Five selecting switches : Dim. : 28 ( L ) × 9 ( H ) × 21 ( D ) cm. Net Weight : 2.5 KGS. |
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