Sorry, I mean the PCB is ok for mounting on main heatsink. On my prototype it is on the other side of PCB.
regards
regards
AX11 under constraction
Thanks Apex but 2N 5401 arivved in few days and i Anxious to listen today.🙂
Any other common replacement😕
Just for test...
the sundays should find him next to it.http://www.youtube.com/watch?v=n5KmgciKEf0
http://www.youtube.com/watch?v=BqzhbE0QlHc
Thanks Apex but 2N 5401 arivved in few days and i Anxious to listen today.🙂
Any other common replacement😕
Just for test...
the sundays should find him next to it.http://www.youtube.com/watch?v=n5KmgciKEf0
http://www.youtube.com/watch?v=BqzhbE0QlHc
Last edited:
AX11 under....test!
Hi Mr.
As i promise the AX11 is here today🙂
bf 872 instade of mpsa92 diferent base
2n6427 instade of mpsa13 same base
2sa1943
2sc5200 final out
Tested rail voltage +/- 23v from two stabilized power supplies
Thats for now ....coming soon on youtube!
For listening of cource.
Thanks Mr Apex.
Pai attention ..in first two photos bd139 and bd140 wrong position!
Hi Mr.
As i promise the AX11 is here today🙂
bf 872 instade of mpsa92 diferent base
2n6427 instade of mpsa13 same base
2sa1943
2sc5200 final out
Tested rail voltage +/- 23v from two stabilized power supplies
Thats for now ....coming soon on youtube!
For listening of cource.
Thanks Mr Apex.
Pai attention ..in first two photos bd139 and bd140 wrong position!
Attachments
Last edited:
AX11 under....test!
Testing this amplifier today i see that idle current at rail voltage+/-22v is 0ma.(v on 0.22R/5w is 0mv).
Mr. Apex can you post the max +/- rail voltage for this amplifier.
Can i use +/-42v ?
What about idle current?
Thanks for all.
Testing this amplifier today i see that idle current at rail voltage+/-22v is 0ma.(v on 0.22R/5w is 0mv).
Mr. Apex can you post the max +/- rail voltage for this amplifier.
Can i use +/-42v ?
What about idle current?
Thanks for all.
AX11 rail voltage is +/-40V (+/-50V max). Idle current can be adjust like in BA1200.
Regards
AX11 under....test!
🙂🙂🙂
Instant replay.
Many many thanks!
Suppose with different value of 3k3 on base of mpsa13 or trimer....
And what value is suggested for +/-42v?
Again thanks.
🙂🙂🙂
Instant replay.
Many many thanks!
Suppose with different value of 3k3 on base of mpsa13 or trimer....
And what value is suggested for +/-42v?
Again thanks.
AX11 under....test!
Thanks Mr.
Coming soon with measurments and listen experience.
I'll post a sort video with yesterday's test's on youtube now .
Thanks Mr.
Coming soon with measurments and listen experience.
I'll post a sort video with yesterday's test's on youtube now .
Nice you can fix VAS transistor to heatsink for better cooling like this:
Attachments
suggestion how to do that power supply ?
35+35V main trafo, and adding a 12+12V or 15+15V trafo ?
Will you recommend 2 pairs for this voltage? What would be the max power can obtain with 2 pairs?