lykkedk said:.......
I am not meassuring anything with F4 hooked up, only meassure DC-offset on pumpkin..
that's certainly some gremlin in your room

This leads me to, not to worry about it so much... As i read between youre lines, that you are supposed to see some pendling with voltages etc... except eg. in total 'clean' condition... which i surely not have done yet, as my case isen't finish.
not between the lines but exactly in them

for that type of circ that's completely normal behavior ;
measuring between outputs (before output caps) offset is low right from the cold, but offset between any output and gnd is starting from 1/2 or 1/3 of positive voltage and it's slowly decreasing during warm up .
that's why caps are there ; purist will certainly think about implementing even input caps....... not me

.........well i can also tell from sonic, that's its not all wrong 😉
I hope .............. 😀
lykkedk said:Nightly opensource listning session ... 😀
Good for you sir! Nice work😉
Zen Mod said:
that's ............. 😀
Has the ostrich passed on?

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Is some one making boards ? for this pre-amp ? it's not to clear in the thread, but i know some one that would buy 2 set's for there f4's.
Jase
Jase
that's certainly some gremlin in your room ; you put R27 and R29 in?
Wrong ??????????????????????
I have R27/R29 on my circuit ! In fact my pcb's are made excatly from schematic...
EDIT: F4 also made as schematics.
EDIT EDIT : C13 / C14 on your'e nice pcb's arent on schematic... extra voltage regulation cap's. ?
Jesper.
jleaman said:Is some one making boards ? for this pre-amp ? it's not to clear in the thread, but i know some one that would buy 2 set's for there f4's.
Jase








lykkedk said:Ya' nuts you too... hey what with my quistion ? 😀
later ....... you'll see pics
what's with your today's listening test?
without that , you will not see the pics
Magura said:
Behave yourself and help the man!
Magura![]()
now I must read instead him?

let another member ( one who call ya hermaphrodite) do that .........
he can't see my posts ,anyway ............

lykkedk said:
..........
EDIT EDIT : C13 / C14 on your'e nice pcb's arent on schematic... extra voltage regulation cap's. ?
Jesper.
tiny difference ........... who cares about that?
what's with your today's listening test?
without that , you will not see the pics
Beware !
Remember :
Is it right / wrong ???that's certainly some gremlin in your room ; you put R27 and R29 in?
Wrong ??????????????????????
I have R27/R29 on my circuit ! In fact my pcb's are made excatly from schematic...
And today's listning goes on right now... had to goto party soon


Jesper.
lykkedk said:
Beware !
Remember :
Is it right / wrong ???
And today's listning goes on right now... had to goto party soon
play's near 110dB 😀 😀 i guess right now... had to run now seya'...
Jesper.
just relax .......... everything is fine .
specimens for Burning Amp Fest
so- I promised to AR2 that I'l send him
for Burning F4 and what else.......
unfortunately - from objective reasons reg pcbs are not finished yet , so Mr. AR2 will receive just 1/3 of
......... entire story is really complete only with those regs .
anyway , few pics right from the bench, without special lighting ; I am just too tired to arrange proper light ......
1/6
so- I promised to AR2 that I'l send him

unfortunately - from objective reasons reg pcbs are not finished yet , so Mr. AR2 will receive just 1/3 of

anyway , few pics right from the bench, without special lighting ; I am just too tired to arrange proper light ......
1/6
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