Balanced
I'm wondering if anyone's looked at B3B vs BA1 or BA2 head to head. The reason is the balanced aspect of it. If comparable, the BA1 or BA2 are a lot more efficient from a build perspective, you don't need all the outputs.
I'm wondering if anyone's looked at B3B vs BA1 or BA2 head to head. The reason is the balanced aspect of it. If comparable, the BA1 or BA2 are a lot more efficient from a build perspective, you don't need all the outputs.
Hi NYCOne,😀
What happened to your avatar,was pretty cool!
I could live there,lol. I have a garage and glad to have it,I had to downsize from 2500 sq ft shop to a 2 car garage, but I'm still alive and kicking,lol.
Is there a thread for B3B?
I have some BA-1 board's but some parts are getting difficult to find,obsolete.
I would like to find a wiring layout for balanced BA-1,it would make it a little clearer,I think VARIAC did one for the BA-3's thank you!🙂
Thanks alot,🙂
NS
LOL should have looked huh? Just answered the email,I'll read the thread,,,,,,Thanks
Ba1 or Ba2 Fe run in balanced mode(possibly x'ed) would be very interesting. It probably comes down to whether you prefer SE or PP FE.
Hi Buzz,🙂
I am reading this thread from the beginning,Balanced looks good to me,
Thanks for the info!
Ns😀
BA3B with feedback
Thanks again to buzzforb - this time for the great BA3B with feedback boards he provided. I have these boards up and running with crippled F4s. They are driving my SEAS woofers. Very wide and deep soundstage with deep articulated bass.
I do develop a "swishing" sound in one side after about an hour - so I will be looking into that.
Will upload pix when system lets me
Thanks again to buzzforb - this time for the great BA3B with feedback boards he provided. I have these boards up and running with crippled F4s. They are driving my SEAS woofers. Very wide and deep soundstage with deep articulated bass.
I do develop a "swishing" sound in one side after about an hour - so I will be looking into that.
Will upload pix when system lets me
Is it possible to post more detailed pics? Close ups of each part? You built the exact setup I'm considering.
Here are some close-ups
Apologies for the blurriness of buzzforbs BA3B w/feedback board. Heat sinks and caps were too tall for the limited depth of field.
The F4 boards are from the DIY shop. They are stuffed "crippled per posts 3355 and 3356 of the F4 thread
PSU are from Tea Bag
Enjoy
Apologies for the blurriness of buzzforbs BA3B w/feedback board. Heat sinks and caps were too tall for the limited depth of field.
The F4 boards are from the DIY shop. They are stuffed "crippled per posts 3355 and 3356 of the F4 thread
PSU are from Tea Bag
Enjoy
Attachments
Needs further refinement, including cascaded FE and higher rail voltage. Adding these few things with a little testing and you have something very nice. Better than Funny......
Please, someone can do post the schematic or the synoptic of its ba3 balanced with output stages.
Thanks
Regards
Darry
Thanks
Regards
Darry
everything is ........ somewhere
Not really sure, but that looks exactly like what I am making 😀 However, I am gathering some curage before starting the drilling and tapping of the 48 holes...
Zen mode , If i use 2 x 20v 500 VA transformer power supply for this circuit , what would be the power out put in class A ..... ?
Apply the usual transformer VA is 6 to 10 times the ClassA maximum power.
That leaves you with a maximum ClassA output of around 50W to 83W
That leaves you with a maximum ClassA output of around 50W to 83W
comparable to XA30.5
give or take few watts
under condition that you have enough mosfets in output stage
This is the board for unbalanced BA-3? If yes, is the balanced version BBA-3 board available to purchase?
If so, where? If not, where can buy this unbalanced board?
