sp300b

Good Job Generg !!!Today seems to be "day for good news"On other hands, I have just tried what tazzz was proposing and I can say :matrix002: :matrix002:So, in short, I put additional 1 Ohm over the upper parallel 1Ohms resistors making now 3 of them in parallel (which equals to 0,33 Ohm).The rest of the system was not touched.Sure, offset setting procedure after that, and I have 0,721 V over upper and 1,020 V over lower resistor.Sounds seems to improve in good way - Much sweeter than it was yesterday.So this is really a way to go.Eager and thinking would I try 4 Resistor in parallel for upper making 0,25 Ohms of it.According to what generg is reporting - seems - why not

R12, R35 - Biasing lower JFetR25, R26 - Biasing upper JFet:character13:Correct ?

Start putting additional R26 over existing R26 (I mean in parallel) - You have to lower it in order to have less voltage over it - which means less voltage over Vgs of the upper fet...which means less current....I mean You can play by means of soldering additional R over R26 and fine tune...No need this way to de-solder R26 that is already in place. Once You satisfied and finish testing, You'll easy remove R over R26, without R26 touched from PCB side. Hope it's clear...

So, from Your experience we should try to lower our 0,5 Ohm (upper) and increase in same absolute amount (lower) 0,5 Ohm - correct ?

Hi tazzz - :welcome02:FYI BJ2 Schematic is to be found here and we all agreed not to be posted on Big Diyaudio forum.edit: schematic

So, how it's possible....I also think it's not possible in our schematic...

Ok - LTP - zero - clear, but it is not possible to have let's say 2,4 A in upper Jfet, and 1,5A in lower Jfet in our schematic - correct ?- if we imagine schematic without speaker connected....

You mean, for example to put one 0,22 and other 0,78 for example instead of 0,5 and 0,5 ? What about offset ?

Very good. At first glance, seems that idea is to have Upper JFet biased with larger current and to use lower resistor in his sourse. Not exacty clear at this stage to me

generg, would you mind Inviting him to come here and share his experience - We are welcoming him

Juma...juma...better tell me Your opinion about this shunt

Tea-Bag ...just for curiosity..You are talking about F2 J with SS, not BJ2 - correct ?

Aco, nek uzorkuje/odabere ovde

Neka ostanehttp://www.locationhiend.com/mfa/pmva_datasheet.pdf

check this...http://www.diyaudio.com/forums/analog-line-level/124234-winding-tvc.html#post1528063http://www.dissident-audio.com/OPT_da/slup125.pdf

Evo jos zanimljivih informacija 1) http://www.diyaudio....er-winding.html za ideju. Podrška s moje strane je osigurana. edit: ovde ima neka schema povezivanja

:Viannen_loungelizard:Me too

Thanks AR2.Comparing to FJ2, in my opinion, sorry to say, but BJ2 should be technically better (better CCS, LTP cascoded ! with LED Vref). Obvious difference is only in output stage where Pass is using 1,4A and Big resistors of 0,47Ohm (two in parallel). Maybe this makes a difference. I will test BJ2 with lower bias and lower output resistors, for sure, soon...

Trust him, he knows what he's doing ( )

Looking forward for new information:bravo:

Very Good !I was joking about the Led color. I've measured (-12,5V) at the top of the Led array - LED green used. Anyhow, You are free to try with one more red led. Also, about gate resistors, I've put 100 Ohms and 100Khz square looks like square at the output on my scope . Was too lazy to try 47 Ohms...If You will try, please put here some thoughts about the change/notice you'll heard. Regards, sp300b

Congratulation :sporty095_2:I'm surprised.It shoudn't work so nice with RED LED's (Green are the better ones)

Dobija se gotovo ili bas Original CD, ako FLAC ili APE format narezes na CD.Korisni linkovi za pocetak:1) My link2) My link3) My link

Samo se zezamo malo, stvarno si ga napravio "svaka čast"

koji bre Sipi, nema taj pojma . Vidju ovo...za 10 minuta...zamisli kad budem imao 30 minuta