Pumpkin Preamp - Perfect for F4

Official Court Jester
Joined 2003
Paid Member
Burnin' 5/6

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Official Court Jester
Joined 2003
Paid Member
Re: Re: specimens for Burning Amp Fest

mpmarino said:



Looks Terrible!

and

R5 is still in the wrong way around.


What will you send instead of shunt? (your breakin' our hearts)


look better- there are few more , but I really tried to follow current path with resistor direction ..........

Mr. Simovic (AR2) will make quickie from http://www.diyaudio.com/forums/showthread.php?postid=1316843#post1316843

who forget to draw gate resistors ........ :cuss:
 
Official Court Jester
Joined 2003
Paid Member
well .....

first pair of pcbs (these on pics) are fully tested ;

gain set at 15 (10K/150K/3p3 feedback net ) ;

tomorrow they will be sent to SF , for burning .........

reg is in cookin' state ........ pcb pattern almost finished .

I have few more ideas (boiled water) for regs , but not sole one good as this,:Pumpkin: related .

I presume that's for another topic .........


hm.......... it's scary looking at scope and seeing amplitude of nearly 70Vpp ......... :apathic: :hot:
 
more listening mono-impressions today ?

Ohhh i forgot to tell, (i think) both channels have been running the last few day's... :bigeyes:

The :Pumpkin: was running in stereo :D 5-6hour's yesterday, and was driving my F4's crazy ;).... All kind of music was played, all genres. The sonic comming from this F4 :Pumpkin: combination, is very very listning freindly, even with POP/MP3's and that sort of media... Everything is smoothed out, so all music is vere relaxing to listning too. Dunno if it's the jfet's, or just a lucky combination of your'e marvelous :Pumpkin: + F4 or both!

That's today's repport ZenMod (Back to hangovers :xeye: )

Jesper.