I told you.... remember 😀 😀 ... Excellent amp. relaxing sound etc...
Tonight 16 people will be listning / dancing to
/ F4, celebrating my wife's graduation to sociaty / social helping education.... Very nice result's : 3time 12 and 4time's 10 at EU examination-scale... but way O.T.... sry... i am just soo proud of her !Jesper
lykkedk said:
....... i am just soo proud of her !
Jesper
you better be !
😉
that can't be OT anywhere ................
naah......... this thread is already poof! with officiality
Zen Mod said:
seems that Magura forgot how Russian coax cable can be tricky
I had managed to forget how russian coax cable is to work with...but I'd say that stuff was even worse!
In the states they have so many strange laws, why not a law against nasty coax cable?
Magura 🙂
jupiterjune said:
naah
I think that his flag have mixed colors 😉
or maybe mine ........
that - if you think on whom I think you think
anyway - I didn't sell anything what I didn't share here first ;
or - I share at least something........
edit:
Zen Mod said:
that - if you think on whom I think you think
Ohh, yes we do
Right, should we name you KK the second?
Magura 😀
Magura said:
Right, should we name you KK the second?
Magura 😀
In some parts "Ch" is pronounced like "K". Can we call you "KoKy"?
AR2,AR2 said:
I am not sure in understand, please explain.
AR2 said:
That is one glowing rave
Dinesh
RKH said:
what's not sent 31.10. , it will be on Monday ; I think that your package is still in my workshop ( Haaland , you are ? 😉 ) .
I planned today , but didn't succeed because of everyday family issues 😉
important is that I have all eeny weeny parts , that was PITA to find them in needed amount for matching purposes ;
for instance - LM336Z-2,5 you can find in gallons everywhere , but that's not the case with (for Pumpkin needed) LM336Z-5,0 ........... buying them from each vendor I know in greater amount than 20pcs is a dream ........
Zen Mod said:
Haaland, yes, that's me. Re: 'Everyday family issues" ... i hear ya' brother. No worries on this end.
Cheers for the reply.
Ryan
ZenMod, I know that you can't remember the open loop gain / close loop gain, of the circuit, but is it possible that it can be explained howto calculate it.
The thing ís, that maybe somebody want to increase the gain, which is 100k / 10k = 10x of 'standard' circuit (R1, R3, R5, R6) give's this gain. I increased the 100k(R5, R6) to 147,5k, and decreased the R1, R3 to 6,8k giving me approx. 20x of gain... eg. the swings around 40v with an input of 2v in my case.
I can't remember the excact, 'max' voltage which the F4 can handle... But if one look forward to attach, an not so gain-strong phonostage perhaps, giving out.. say 1v, the F4 will only be feeded with 10v on standard, and around 20v in my setup... If the F4 need's... let's say around 25-30v for full throttle, the thing is still missing something to drive it to the max.
I know, that all such adjustment's has a backside, but i hope you got my idea, to conclude the stuff in the revissed cooking-book, BUT this is just an idea i have.
My DAC, gives around 1,6v out, so i think my setting's on is perfect for that, giving around a voltageswing of 34v (16v on standard )...
Jesper.
The thing ís, that maybe somebody want to increase the gain, which is 100k / 10k = 10x of 'standard' circuit (R1, R3, R5, R6) give's this gain. I increased the 100k(R5, R6) to 147,5k, and decreased the R1, R3 to 6,8k giving me approx. 20x of gain... eg. the
swings around 40v with an input of 2v in my case.I can't remember the excact, 'max' voltage which the F4 can handle... But if one look forward to attach, an not so gain-strong phonostage perhaps, giving out.. say 1v, the F4 will only be feeded with 10v on standard
, and around 20v in my setup... If the F4 need's... let's say around 25-30v for full throttle, the thing is still missing something to drive it to the max.I know, that all such adjustment's has a backside, but i hope you got my idea, to conclude the stuff in the revissed cooking-book, BUT this is just an idea i have.
My DAC, gives around 1,6v out, so i think my setting's on
is perfect for that, giving around a voltageswing of 34v (16v on standard )...Jesper.
ZM, anybody,
C4/C5 & C11/C12 are the output caps, I know you have said use your fav. But, I do not have a "fav". I am thinking of using
Black Gate N 47mfd 50V available in partsconnexion for $10, bypassed with 1mfd Vishay MKP 416-420 available on Digikey for a buck.
Why 47mfd? Well, my pumpkin will also be doing double duty of a headphone amp. I thought a larger cap will help with lower impedance cans. Or is this not a good idea?
What do you guys think of this choice? Any other suggestions?
Thanks,
Dinesh
C4/C5 & C11/C12 are the output caps, I know you have said use your fav. But, I do not have a "fav". I am thinking of using
Black Gate N 47mfd 50V available in partsconnexion for $10, bypassed with 1mfd Vishay MKP 416-420 available on Digikey for a buck.
Why 47mfd? Well, my pumpkin will also be doing double duty of a headphone amp. I thought a larger cap will help with lower impedance cans. Or is this not a good idea?
What do you guys think of this choice? Any other suggestions?
Thanks,
Dinesh
Sweep me off....
Guys, you are bored..... Here is something to have you listen up..
Since this thread has my name printed on it, I thought that you might want to see one of my fav. flies:::🙂 he-he Here ya go, take a look at the sweeping flow, that this fly has........Makes you want to throw it into thew current...... I am sold, Greame is, the question is, are you???? Yep, I dressed it......;-)
Steen🙂
Guys, you are bored..... Here is something to have you listen up..
Since this thread has my name printed on it, I thought that you might want to see one of my fav. flies:::🙂 he-he Here ya go, take a look at the sweeping flow, that this fly has........Makes you want to throw it into thew current...... I am sold, Greame is, the question is, are you???? Yep, I dressed it......;-)
Steen🙂
