| jaudio |
| I built a parallel bridged amp with 8 lm3886 I measured the voltage at the output Im getting 3volt dc and 32volt ac when the amp in wide open. Is the normal |
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| demogorgon |
time to go over the amp with your multimeter and check every solder joint and wire in the amp.
do you have a dc servo in your amp considering you have so many chips?
marius |
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| janneman |
I got you Marius:
Your sig relates to the winter season when most of you put on your skis and take off into the wilderness!
Of course there are no toilets, and you will find places where the snow has a golden color!!
Hence, the proverb says - directly translated: Cook never coffee on yellow snow!,
or better: Never make your coffee based on water from yellow snow! As a proverb, absolutely NOT dirty! The coffee on the other hand ......!
Jan Didden |
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| janneman |
| quote: | Originally posted by jaudio
I built a parallel bridged amp with 8 lm3886 I measured the voltage at the output Im getting 3volt dc and 32volt ac when the amp in wide open. Is the normal |
You must tell us a bit more. Post a schematic diagram. What do you mean with "the amp is wide open"? Have you measured with the input shorted? If not, do that first.
Jan Didden |
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| demogorgon |
| quote: | Originally posted by janneman
I got you Marius:
Your sig relates to the winter season when most of you put on your skis and take off into the wilderness!
Of course there are no toilets, and you will find places where the snow has a golden color!!
Hence, the proverb says - directly translated: Cook never coffee on yellow snow!,
or better: Never make your coffee based on water from yellow snow! As a proverb, absolutely NOT dirty! The coffee on the other hand ......!
Jan Didden |
DAMN!
you spoiled the fun for me now!! I'l have to come up with something new now i guess.. but tell me.. who's your inside source?
ontopic: yes, post schematics. that always helps. :D |
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| janneman |
| quote: | Originally posted by demogorgon
[snip]but tell me.. who's your inside source?
[snip] |
My boss, actually. Retired Norwegian Army general. He loved it!
Jan Didden |
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| jaudio |
| what i mean by "wide open" is the volume control is turn completely to the right. I used the classic inverted design and there is no servo just trimmer at +input |
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| carlosfm |
| quote: | Originally posted by jaudio
what i mean by "wide open" is the volume control is turn completely to the right. I used the classic inverted design and there is no servo just trimmer at +input |
Use an input buffer, after the pot. |
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| peranders |
| quote: | Originally posted by janneman
Your sig relates to the winter season when most of you put on your skis and take off into the wilderness!
Of course there are no toilets, and you will find places where the snow has a golden color!!
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Jan, you are smart. I didn't get that despite it's spelled out in clear for me.
"Koka aldrig kaffe på gul snö" in swedish. Sometimes you are slow....
Jan, what about my sig at the bottom? |
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| peranders |
| quote: | Originally posted by jaudio
what i mean by "wide open" is the volume control is turn completely to the right. I used the classic inverted design and there is no servo just trimmer at +input |
Do you get offset if you have the input shorted? Have you built two amps and the results are the same? |
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| jaudio |
| I added another 68,000uf cap to the power supply. dc offset is bewteen .6 and 125mv. I have not tested with input shorted. Yes, I have built a second amp it works, but I only tested it when its idle, the offset voltage is 0.000 |
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| janneman |
| quote: | Originally posted by demogorgon
[snip]marius |
Marius,
To make up for my hi-jack of your sig:
do while OT { temperatures in the world and in Norway:
+15°C / 59°F
This is as warm as it gets in Norway, so we'll start
here. People in Spain wear winter-coats and gloves.
The Norwegians are out in the sun, getting a tan.
+10°C / 50°F
The French are trying in vain to start their central
heating. The Norwegians plant flowers in their
gardens.
+5°C / 41°F
Italian cars won't start. The Norwegians are cruising
in cabriolets.
0°C / 32°F
Distilled water freezes. The water in Oslo Fjord gets
a little thicker.
-5°C / 23°F
People in California almost freeze to death. The
Norwegians have their final barbecue before winter.
-10°C / 14°F
The Brits start the heat in their houses. The
Norwegians start using long sleeves.
-20°C / -4°F
The Aussies flee from Mallorca. The Norwegians end
their Midsummer celebrations. Autumn is here.
-30°C / -22°F
People in Greece die from the cold and disappear from
the face of the earth. The Norwegians start drying
their laundry indoors.
-40°C / -40°F
Paris starts cracking in the cold. The Norwegians
stand in line at the hotdog stands.
-50°C / -58°F
Polar bears start evacuating the North Pole. The
Norwegians army postpones their winter survival
training awaiting real winter weather.
-70°C / -94°F
The false Santa moves south. The Norwegians army goes
out on winter survival training.
-183°C / -297.4°F
Microbes in food don't survive. The Norwegian cows
complain that the farmers' hands are cold.
-273°C / -459.4°F
ALL atom-based movement halts. The Norwegians start
saying, "Faen, det er kaldt i dag" (Damn, it's cold
today...)
-300°C / -508°F
Hell freezes over; and Norway wins the Eurovision Song Contest.
}endwhile OT
Jan Didden |
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| demogorgon |
janneman: i haven't laughed so good in ages!
the thing is almost aqurate down to about -50°C you know :D |
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| janneman |
| quote: | Originally posted by demogorgon
janneman: i haven't laughed so good in ages!
the thing is almost aqurate down to about -50°C you know :D |
... but you realise you'll NEVER win the eurovision song contest, of course.:angel:
Jan Didden |
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| demogorgon |
we allready have :clown:
"la det rulle, la det rock and roll, la det rulle til du mister all kontroll..."
ough.. really hate that song..:D
ask your boss about it.. |
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| janneman |
| quote: | Originally posted by demogorgon
[snip]"la det rulle, la det rock and roll, la det rulle til du mister all kontroll..."[snip] |
Yeah...
That Jury must have had an off-day big time:D
Jan Didden |
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| jackinnj |
| quote: | Originally posted by janneman
... but you realise you'll NEVER win the eurovision song contest, of course.:angel:
Jan Didden |
but what, to paraphrase Michael Myers, do the "freekie-deekie" Dutch do in the cold, aside from console themselves with oude ginnever?
"...in the bleak midwinter, frosty wind made moan, earth was hard as iron, water like a stone...snow had fallen, snow on snow, snow on snow, in the bleak mid-winter, long, long ago..." |
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| janneman |
| quote: | Originally posted by jackinnj
but what, to paraphrase Michael Myers, do the "freekie-deekie" Dutch do in the cold, aside from console themselves with oude ginnever?
"...in the bleak midwinter, frosty wind made moan, earth was hard as iron, water like a stone...snow had fallen, snow on snow, snow on snow, in the bleak mid-winter, long, long ago..." |
Jack,
I have no idea. I can only say we learned since then, and nowadays we stay indoors with the central heating, but of course still with the oude genever....
Jan Didden |
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