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Josue Roberto Lopez Lobo (jorololo)
Username: jorololo

Registered: 01-2008
Posted on Friday, March 20, 2009 - 10:33 am:   

Hello everybody, I just want to know a easy and quick "process" to know if my transformer its bad, you know, for maintenance process,
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Steve Kennedy (admin)
Username: admin

Registered: 03-2002
Posted on Saturday, March 21, 2009 - 03:00 pm:   

Which transformer? The power transformer is somewhat easier as you just need to check for an AC voltage on each winding that corresponds to each DC power supply's output and rectifier configuration.

Output transformers are harder to check, but there is a good way to do it outlined in the Gerald Weber (Kendrick Amplifiers) DVD that is devoted to amp servicing. It is a lot easier to see how it is done if you view the DVD.

Steve
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Josue Roberto Lopez Lobo (jorololo)
Username: jorololo

Registered: 01-2008
Posted on Monday, March 23, 2009 - 04:42 pm:   

Hey Steve, nice to talk to you again!, i mean to the output trans and the power trans, for example, some points to measure the voltage for the power trans, and ohm values to refer to output trans,

Roberto
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Steve Kennedy (admin)
Username: admin

Registered: 03-2002
Posted on Saturday, March 28, 2009 - 08:40 pm:   

On a power transformer it is easiest to jsut measure the amp's power supplies. If the supplies are all correct then there shouldn't be a transformer problem.

You can't simply measure an output transformer with a meter to test it properly. It must be tested with an AC signal. The method I referred to in my previous message is one way way to do the job. Since I cannot post the video your best bet is to either buy the DVD, buy one of Gerald Weber's books which contain this method or search the web for some similar procedure.

Steve

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