Loudspeaker Polarity Tester 139B
Features :
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.
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.
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Specifications of Model - 139B |
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1. Pulse Testing Method. 2. Polarity : a. Pos. polarity :Green LED indicator with beep sound. b. Neg. polarity : Red LED indicator with no sound. 3. Sensor : ECM 4. Five selecting switches : WF : suitable for the woofer. M & T : suitable for the midrange, tweeter & headphone. Ext.1 ~ Ext.3 : For connecting instruments. 5. Dim. : 28 ( L ) × 9 ( H ) × 21 ( D ) cm. 6. Net Weight : 2.5 KGS.
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Catalogue:
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.
Features :
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.
Only one person
is needed
to make the
operation,
save labor and time .
Easy
to learn,
to operate,
high reliability.
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