hi longthrow is that your cab?
nicely done huh...
BTW I've seen the output transformers are those the size of the 200watt ones. Or are those the ones that are customized.
and the input ones, are those the vt65's or still customized?
macweb
nicely done huh...
BTW I've seen the output transformers are those the size of the 200watt ones. Or are those the ones that are customized.
and the input ones, are those the vt65's or still customized?
macweb
the cab belongs to a friend of mine..installed early this year..
the big ones are custom-made while the small ones are '65s
the big ones are custom-made while the small ones are '65s
ahh...
so how thick are those ouput transformers compared to the ones ready made.
well I also presume that wire guage are also different,
of course no of turns.
so how thick are those ouput transformers compared to the ones ready made.
well I also presume that wire guage are also different,
of course no of turns.
How about learning some higher tech?
Considering that yours is a mobile application, where lowest power consumption, low weight and small size are desirable features, I would do some research on things such as class G, H and D and push-pull SMPS if I was you. For example, I'm currently designing a custom 2 x 150W@4ohm class D amplifier for motorbike audio. It's going to be small for easy installation and it's going to waste very little power into heat to allow playing loud music without overloading the electrical system.
Audio frequency transformers are bulky and heavy, they distort subs and trebble, and they use lots of copper which is a semi-precious metal whose price increases every day (that's probably due to te huge amounts of copper wasted in stone-age applications like low frequency transformers and old-school electrical systems in vehicles and buildings
)
Considering that yours is a mobile application, where lowest power consumption, low weight and small size are desirable features, I would do some research on things such as class G, H and D and push-pull SMPS if I was you. For example, I'm currently designing a custom 2 x 150W@4ohm class D amplifier for motorbike audio. It's going to be small for easy installation and it's going to waste very little power into heat to allow playing loud music without overloading the electrical system.
Audio frequency transformers are bulky and heavy, they distort subs and trebble, and they use lots of copper which is a semi-precious metal whose price increases every day (that's probably due to te huge amounts of copper wasted in stone-age applications like low frequency transformers and old-school electrical systems in vehicles and buildings
)
Eva said:
hi eva,
i agree with you & were completely aware of that (post#55,71 & 73),in fact i personally go for class h..
but this low-tech scheme is the topic here..🙂
thanks for your comments!!!😀 😀 😀
"in fact i personally go for class h.."
Since you said you were using 36V from batteries, you have a 12V, 24V, and 36V tier available. Refering to the diagram in #46, all you need do is add a couple of diodes at 45C and 46C, tie them together and use that for the level shift zener to drive the switch circuit for the high voltage tier.
You can have the high efficiency without the inverter, and with a DVC woofer you don't need the output transformer either.
Since you said you were using 36V from batteries, you have a 12V, 24V, and 36V tier available. Refering to the diagram in #46, all you need do is add a couple of diodes at 45C and 46C, tie them together and use that for the level shift zener to drive the switch circuit for the high voltage tier.
You can have the high efficiency without the inverter, and with a DVC woofer you don't need the output transformer either.
higher classes are always an option for this. well no comments for that.
but in our case here
scarcity of the materials needed is always the problem.
importing is another story.....
but in our case here
scarcity of the materials needed is always the problem.importing is another story.....
longthrow said:
hi eva,
i agree with you & were completely aware of that (post#55,71 & 73),in fact i personally go for class h..
but this low-tech scheme is the topic here..🙂
thnx for the info djk,
sorry my mistake,what i meant is class d,not h
i need a diagram of 2n3055 booster amp....
can anyone give a diagram of this coz i'm planning to build one on my own.....thanx........
can anyone give a diagram of this coz i'm planning to build one on my own.....thanx........
maaung buntag nin.u longthrow ug heinrich......pwede ko ngau nin.u ug diagram sa booster?.......unsa imo gamit na transistor?......butangi lng sad ug values ug part names ang imo diagram longthrow thanx....
bisdak rocks!!!!!😀
bisdak rocks!!!!!😀
Can anybody please send me the circuit diagram of Booster amp explained above.
my email id is
renjiish@gmail.com
my email id is
renjiish@gmail.com
It is used now a days, because was the simplest way, the cheapest way...
to increase power... a very low cost sittuation.
The cheap automobile amplifiers are using this kind of schematic even now a days when we have Class D units with 4000 watts of output.
Distorts a lot...... but if you listen music into the automobile...well.... quality is not really what they want (HERE!)... they want some punch only..... and they use to spin around the town avenues producing their Thump, Thump, Thump!
hehehehe.... sometimes used to guitars.... well..guitars already have distorters.... this makes the music seems to have more "body" as some folks say.... distortion from guitar plus distortions from amplifier produces a beautifull mess.... and that's all they want.
They are on the mood..want to show themselves, if they can paint body with yellow and tie a rope around the neck holding a big wattermellow to be "VERY VISIBLE"...then they do!
Those guys are spending little money and producing strong and loud sound... and that is what they want (HERE, down here, in Brazil, South America)
Sometimes, speakers are associated and resulted into 0.25 ohms....ahahahahah!
I felt them a little bit ridiculous...but they feel i am ridiculous and they are special, great, famous, popular and beautifull "Show man"
regards,
Carlos
to increase power... a very low cost sittuation.
The cheap automobile amplifiers are using this kind of schematic even now a days when we have Class D units with 4000 watts of output.
Distorts a lot...... but if you listen music into the automobile...well.... quality is not really what they want (HERE!)... they want some punch only..... and they use to spin around the town avenues producing their Thump, Thump, Thump!
hehehehe.... sometimes used to guitars.... well..guitars already have distorters.... this makes the music seems to have more "body" as some folks say.... distortion from guitar plus distortions from amplifier produces a beautifull mess.... and that's all they want.
They are on the mood..want to show themselves, if they can paint body with yellow and tie a rope around the neck holding a big wattermellow to be "VERY VISIBLE"...then they do!
Those guys are spending little money and producing strong and loud sound... and that is what they want (HERE, down here, in Brazil, South America)
Sometimes, speakers are associated and resulted into 0.25 ohms....ahahahahah!
I felt them a little bit ridiculous...but they feel i am ridiculous and they are special, great, famous, popular and beautifull "Show man"
regards,
Carlos
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