Friday, July 13, 2007

Amp Update

Righto. Reached home at like 8+, then took a shower and started working on my amp before dinner came. What i had to do was to remove the parallel resistor so that i would have a effective resistance of 1.2Ohms along the output stage in order to decrease my bias current
Instead of 2 resistors, now there is only one. so its 1.2ohms

Each channel has its own heatsink.

Everything needed to run the whole thing.


Now some maths. With voltage of 0.739V and a resistor of 1.2Ohm, we have:

0.739=(I)(1.2)
I=0.616A
Power that is continuously dissipated.
P=VI
P=(32)(0.616)
P=~20watts

Thats alot of heat considering im not using it to cook anything. It works already and there is sound. I would really wish to borrow my father's office oscilloscope and check for oscillations here and there. But anw, theres sound already. I have yet to do a proper listening test so cant really comment on the sound. Must wait till it gets fitted into a box, which will be my aluminium casing (:

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