How to solve noise/storing/on car Tube Amp ? any Schematic ? - diyAudio
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Old 13th January 2007, 02:22 AM   #1
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Default How to solve noise/storing/on car Tube Amp ? any Schematic ?

I just finish my car tube amplifier and I need a "Filter" circuite diagram because of the alternator/engine noise that goes in to the amp (noise).

does anyone ever built this filter ? specially for tube car amp ?

any schematic/info/website ?

cal
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Old 13th January 2007, 03:52 AM   #2
nhuwar is offline nhuwar  United States
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What kind of cap's do you have on it. You can also use the math and figuare the ripple coming off the alternator.

I just don't remimber the frquency they work at.

But if the amp isn't huge you can use a pi filter to do it or just 2 1 farad caps and a swinging cap.

( swinging cap is a high power pulse amp trick it's a high capacitance cap in seires with a 'lets say a 5 ohm resister of high wattage be for the other filter caps. )
The idea is that the resistor keep's the swing cap from completely discharging and quickly charges the other ones up so you see less of a drain from the other cap when they charge.
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Old 13th January 2007, 04:37 AM   #3
lndm is offline lndm  Australia
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Don't forget to bypass the electrolytic in order to catch the harmonics.
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Old 13th January 2007, 06:02 AM   #4
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thanks guys,
but I need the schematic for that and how to make the coil... if there is one.

cal
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