Welcome to Solid State Guitar Amp Forum | DIY Guitar Amplifiers. Please login or sign up.

January 31, 2023, 03:13:16 PM

Login with username, password and session length

Recent Posts

 

Shorted IEC line filter

Started by Den., January 01, 2023, 01:48:18 PM

Previous topic - Next topic

Den.

Hi. The amp is a three year old Peavey Vypyr. The amp started smoking and the breaker in the power strip it was plugged into tripped shutting everything down. I've determined that there is a short inside the 3Amp IEC EMI filter. You cannot view this attachment.I've found a replacement online that I can order that has the exact same specs. I also found 1A, 6A and 10A rated filters with almost the same specs. The one spec that is different is the inductor spec. My questions are: Is the inductor used in that device what determines the device's AMP rating? And, would there be an advantage with using a replacement EMI filter with a higher (or lower?) AMP rating for this application?  Thanks.You cannot view this attachment.You cannot view this attachment.You cannot view this attachment.You cannot view this attachment.You cannot view this attachment.     

joecool85

Assuming that there is a fuse somewhere on the amplifier, you will be all set to use a larger EMI filter.  Just don't go smaller, or you will have the same thing happen again.  I would go with the 6A myself.
Life is what you make it.
Still rockin' the Dean Markley K-20X
thatraymond.com

Den.

Quote from: joecool85 on January 01, 2023, 05:33:16 PMAssuming that there is a fuse somewhere on the amplifier...
Yes, there is a fuse. A t3.15al250v on the circuit board. And, in other news...

You cannot view this attachment.

phatt

Looks like Ukraine shot it down ;D
Phil.

joecool85

Quote from: Den. on January 01, 2023, 07:16:25 PM
Quote from: joecool85 on January 01, 2023, 05:33:16 PMAssuming that there is a fuse somewhere on the amplifier...
Yes, there is a fuse. A t3.15al250v on the circuit board. And, in other news...

You cannot view this attachment.

Yeah, I'd say this is the issue lol.
Life is what you make it.
Still rockin' the Dean Markley K-20X
thatraymond.com

mandu

These line filters live for many years.
Probably, the ac supply voltage exceeded more than the rating of some component for too long.

Regards.