That's the DC Offset dear Juan when replaced bc547 to 2n5551 and bc557 to 2n5401, BIAS was set on 15mV and im getting around 35mV across R47.
Regards,
Willy
Last edited:
ohhhh ok sorry bro I thought that was 15V output I know it can produce even more than that I was just curious 🙂
Regards
Juan
Noooo... i'ts ok bro no need to sorry, my next step is to play the offset target point to zero, just having fun of my apex collection....😀😀😀
Last edited:
I would like to see you make a video of what you doing your work is really nice man 😀
Regards
Juan
Regards
Juan
Mr. Mile,
Why this AX-20 amp when i apply +/-78vdc it gives 73VDC on output, but when i apply back to +/-38vdc the amp works perfect and it gives 18mV offset on output, what is the possible cause of that high DC offset when applied +/-78V?
Regards,
Why this AX-20 amp when i apply +/-78vdc it gives 73VDC on output, but when i apply back to +/-38vdc the amp works perfect and it gives 18mV offset on output, what is the possible cause of that high DC offset when applied +/-78V?
Regards,
Is a good thing you show on video plus it will help other builders too, and you are one of the best layout designer here show your laboratory mine is too tiny jejeje
and I don't have much to show this is all tools I use and I don't feel shame and I'm happy with what I got 🙂
Regards
Juan
Attachments
Last edited:
There must be some mistake on your amp... VAS used for AX amplifiers can work with +/-100V rail voltage.
Regards
You mean without changes VAS can handle +/- 100VDC rail?? Please confirm...
Thanks...
Regards,
Really!! Thats nice... then i have to revise it and restore as per ariginal recommended parts in schematic.
Many thanks for the reply and support.
Regards,
sound comparison
Mr. Miles, Willy and all,
I only finished the AX11 and I love it.🙂
You guys keep building all different models. Is it possible to put up a list of your own and tell which one you like the best.
Regards
Albert
Mr. Miles, Willy and all,
I only finished the AX11 and I love it.🙂
You guys keep building all different models. Is it possible to put up a list of your own and tell which one you like the best.
Regards
Albert