Blue Ring tester

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CIRCUIT DIAGRAM + BLOCK DIAGRAM + PART LIST + MANUALS + SECRETS

ONLY 10$

This ring tester is an inexpensive and effective way to test any high Q inductive component. It is especially useful for doing a quick check on flyback transformers, line output transformers and other high frequency inductive components like deflection yoke windings and SMPS transformers.

Hi Q = low loss inductive components. A shorted turn or coil will show no rings. A shorted FBT diode will show few or no rings.

The LEDs on the left side show the Q of the device being tested, more lights = higher Q, i. e., no lights = short circuit, red = Bad or low Q, yellow = ??? or medium Q, green = Good or high Q.

Tests in circuit, & test leads are non-polarized
Easy-to-read, high brightness red, yellow and green LEDs display the Q of the device being tested.
Simple operation for fast easy diagnosis of faulty inductive components.
New Improved design increases sensitivity for low impedance components such as SMPS transformers and deflection yokes.
Includes a ferrite core and mag

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CIRCUIT DIAGRAM + PART LIST + HOW CAN YOU BUILD IT YOURSELF + MANUALS

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ER.EGYPT@YAHOO.COM

Clamp Meter

Recently one of my office air condition have problem so i called up the aircond servicing company for help. The complain was not cool and only blowing the normal air. The first thing the technician do was to use the Clamp meter set to Ac range and clamp it across the main cable. I could see the ampere drawing from the aircond compressor was getting higher and higher. According to him, a good air cond should draw about 5amp but this faulty aircond was drawing about 11 to 12 ampere.
The result from the test was the outdoor compressor having problem. It could either be the compressor, fan motor or even the capacitor have problem according to the technician. He gave me few suggestions to see which decision i have to make. The story on this was not about faulty aircond, it was about the clamp meter being use to find out the fault fast. Without the meter, the technician may suspect the fault at the indoor unit. But because they have the meter, he can instantly tell me that it was the outdoor unit that have problem.