sp300b

:Laie_68:Gorgeous !!!Still not used balanced, but veeeery promising sound so far

Second PCB Tested....boring :aloofandbored12:It's working the same as the first one

I'm tired...You're right...

?So, what's die beste ....

Just checking are You following me :crazyrocker:4,28mA 10 K down3,9mA - 1K 0,39mA - 10 K left

Kirchoff :10 K left - 4,25mA10 K down - 6,58 mA1K right - 2,34mA

OK ZM...You too

Sipi was right.I changed R39. R57 and R70 to 10K - No change....0,49V over R69I changed Q26...0,49V over R69I put R70 1K and 0,6V over R69 then...I'm OK with this...

Hvala sipi...Ja sam svuda umesto 12K stavio 15K...verovatno je tu zez....Mozda promenim sva3 komada na 10K.

If You have Vgs measured as 1,32V at 2A, then expect Vgs+Rds to be around 2,4V, not 2,7V....

Some more thinking given as comments in red edit : schm deleted by ZM

Anyhow, Do you agree with a measurement points shown previously (where and how) ?

And according to previous picture, here comes where to measure

Here comes Schematic Nomenclature according to my PCB edit : schm deleted by ZM

Busted !

Yea, One really BIG FuLLrange man

I've just started playing with this toy....Myth will be 100 % Busted in a coming days

Test Setup connected, Concept is Working and here comes the measurements done tonight. Seems to be very stable, On osciloskope over 100 KHz there is no problem with Square input. Additionall small tweeking of the elements seems to be required.... for ZM - I didn't changeR25 trimmer from the starting position. edit : schm deleted by ZM

ZM don't know

Forgot to mention 100 Ohms for Gate Stoppers, too ;-)

ZM, please, take a look and approve this

And prove that I'm listening good advices :hi:Safety Zeners....

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