Still another mj15003 ampli

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xcicc

Member
2008-08-02 3:26 pm
Italy
Hi, I want build this simple amplifier but I want change/use only 20v because I don't need too much power.
Any suggestions are welcome
Thanks
 

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Mooly

Administrator
Paid Member
2007-09-15 8:14 am
Realistically its probably good for around 16 watts rms into 8 ohms. That assumes it can swing to say -/+ 16 to 17 volts or so. 16 volts peak is 11.3 volts rms which is 15.9 watts rms (8 ohms). You might get a fraction more, or a fraction less.
 
To be honest, for just +/- 20V rails you could go even simpler.

TO-5 is quite obsolete so i dont see why you'd want to use them. I'd consider using flatpak mount devices like TIP2955/TIP3055 or TIP35/TIP36. For the rest, small signal transistors like BC546/BC556 or 2N5401/2N5551 will do perfectly well.
 
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