N-channel Problem HELPPPPPP

[JBnl]

@viktor

Do you know if there is a website where is talking about this schematic ?

What is the value for the heatsink ?
And what will the RMS will be ?
Can it handle 8 and 4 Ohm ?

 

[LuigiDJ]

Re: Amplifier

Buil this amplifier but with 8 IRFP250

Hi!
I'm building one LEGEND amp at this moment, and I'd like to ask how does it sound?, did you make any modification to the circuit?
I can get the IRFP150 MOSFET transistor at U$2, the IRFP250 is double the price, which ones should I get?

I'm building it to drive 2 - 15" 8 ohm sub speakers

Anyone have tips/mods for this amp?

LuigiDJ

 

[edl]

i think there is a mistake in the legend schema

the 20pF mica cap is in wrong place... that need to be between the VAS-transistor's base and collector. that's the miller cap.

am I wrong?!

 

[kASD]

i think there is a mistake in the legend schema

the 20pF mica cap is in wrong place... that need to be between the VAS-transistor's base and collector. that's the miller cap.

am I wrong?!

Its not wrong , its just another VERSION of VAS compensation technique apart from traditional types...


K a n w a r

 

[tiefbassuebertr]

I have start a new thread regarded this:

"Only N-Channel MOSFETs (NMOS); better Audio from non complements by Audio Power?" please go to
http://www.diyaudio.com/forums/showthread.php?s=&threadid=148646