Seeing the full power sign and square waves only, I think that merely 1X100ohms (3W) should be okay.
🙂
🙂
Opps i wrote the wrong resistor value. When I wrote 1 ohm 2W i was thinking about R11 & R12 . I could use 2 in parallel and get 0.5 ohm 4w with metal films. But with R5-8 I can use 200 ohm 2W metal films , double it up and still get 50 ohm 8w. The reason for this is that I have alot of 2w metal films and wouldn't it be better to use metal film here instead of wirewounds? 🙂
no need to guess.bobodioulasso said:
Pd = V * V / R = I * I * R = I * V
These formulae work for DC voltage and for AC voltage (Vrms)
Me again (and again and again)...
Does 225VA 2x18v toroids enough per channel (for 8R spks) do you think?
Does 225VA 2x18v toroids enough per channel (for 8R spks) do you think?
no,bobodioulasso said:
it's taught in 3rd grade school science (in Scotland = 14 to 15year olds)
After all, Scotland is the second industrialised country in the world, so it is a small wonder. But for the rest of us, isolated by the channel... 🙂
225VA can support amplifiers between 112W and 225W of maximum total output power (economically).Dxvideo said:
A pair of National chipamps feeding 8ohm speakers from +-25Vdc will develop a maximum of ~32W+32W, 64W total.
The transformer is a bit extravagant, but it will certainly work.
off topic
obviously not, in which case your post contributed nothing to the discussion.bobodioulasso said:
"We dont need no education.
We dont need no thought control.
No dark sarcasm in the classroom.
Teacher, leave those kids alone.
Hey, teacher, leave those kids alone!
All in all its just another brick in the wall.
All in all youre just another brick in the wall."
We dont need no thought control.
No dark sarcasm in the classroom.
Teacher, leave those kids alone.
Hey, teacher, leave those kids alone!
All in all its just another brick in the wall.
All in all youre just another brick in the wall."
"You the people have the power, the power to create machines, the power to create happiness. You the people have the power to make life free and beautiful, to make this life a wonderful adventure. Then in the name of democracy let's use that power - let us all unite." Charles Chaplin
Doesn't that sound nice? 🙂
Doesn't that sound nice? 🙂
AndrewT said:
Thx Andrew! Im asking that because somebodies asking like "will a 400VA enough for this project" etc.. So I am consused..
Thanks again.