Comments on: Small Speaker Horn Repair https://jestineyong.com/small-speaker-horn-repair/ Semiconductors, Test Equipments, Circuit Board Troubleshooting, Electronic Repair Courses and Many More! Sat, 17 Oct 2015 08:56:13 +0000 hourly 1 https://wordpress.org/?v=5.4.19 By: Albert van Bemmelen https://jestineyong.com/small-speaker-horn-repair/comment-page-1/#comment-260411 Sat, 17 Oct 2015 08:56:13 +0000 https://www.jestineyong.com/?p=11031#comment-260411 In reply to Albert van Bemmelen.

I hope that the Dislike Button pressing person knows why he is pressing it. Because he better have a very good reason. Absolutely any idiot can press that button without giving any good reason afterwards!

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]]> By: Albert van Bemmelen https://jestineyong.com/small-speaker-horn-repair/comment-page-1/#comment-260233 Fri, 16 Oct 2015 08:58:43 +0000 https://www.jestineyong.com/?p=11031#comment-260233 I find it still quite unique the way you know how to fix bad damaged speakers or in this case a speakerhorn Mr. Suranga. But I myself do not use any battery.
My friend and I both bought the MW 1008 meter Kit. It is an excellent tester to measure LCR components and so also for measuring Speaker impedances.

The MW 1008 tester gives very exact the |Z| value, the imaginary value, and the R part. All according to the triangle of Pythagoras. Were Z = the square root of (R^2 + X^2). And from calculation we know that when X is very small (is Impedance of our Speaker) also angle Phi will be very small too! And vector X and vector R are at an angle of 90 degrees shifted to each other.
And that results in a Z value being just a little bigger than its R value when X and angle Phi are very small.

The value of R that the MW 1008 accordingly displays is always about the value that is printed on any Loudspeaker tested.
And you just can't measure this with any ordinary Universal Digital Meter.

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]]> By: Chris https://jestineyong.com/small-speaker-horn-repair/comment-page-1/#comment-260224 Fri, 16 Oct 2015 08:14:56 +0000 https://www.jestineyong.com/?p=11031#comment-260224 Congratulation and another equipment was saved from junk.

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]]> By: Yogesh Panchal https://jestineyong.com/small-speaker-horn-repair/comment-page-1/#comment-260207 Fri, 16 Oct 2015 06:37:59 +0000 https://www.jestineyong.com/?p=11031#comment-260207 Suranga, Congratulations! for fix.

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]]> By: Dan https://jestineyong.com/small-speaker-horn-repair/comment-page-1/#comment-260172 Fri, 16 Oct 2015 03:08:59 +0000 https://www.jestineyong.com/?p=11031#comment-260172 As one who has repaired and re-coned 100s of speakers, there are a few details missing from this article that are important.

1) When testing a speaker with a battery, it is important to only have it connected for a very brief moment. Otherwise you risk burning the coil.

2)The Ohm readings for coils will be dependent upon the impedance of the speaker. For example, a 4-Ohm speaker will measure 3 or less, n 8-ohm speaker will measure 5.8 as shown here. Not all coils will measure 5.8. You must take into account the impedance.

Dan

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