here it is
now I know why you want me to put gnd besides those supply and output tracks.
again this is a two sided pcb composed of two gnd. plain at the bottom(power and signal gnd). with two gnd returns to star gnd.its worth to try experimenting.
regards,
joel
p.s.
forgot the attachment
Attachments
perfectmate for a good power supply...
what is the purpose of a good power supply when you have a bottleneck at the amp.pcb...
not only voltage will sag but will create noise
I have put a bridge in here, but still it has a two gnd returns.I have manage to silence the symef with only one gnd return and sure it will not be a problem in here.enclosed in zip is the top and bottom of the pcb. so you could peek.
regards,
joel
what is the purpose of a good power supply when you have a bottleneck at the amp.pcb...
not only voltage will sag but will create noiseI have put a bridge in here, but still it has a two gnd returns.I have manage to silence the symef with only one gnd return and sure it will not be a problem in here.enclosed in zip is the top and bottom of the pcb. so you could peek.
regards,
joel
Attachments
spend in speaker....
I have a vintage receiver only 15 watts per channel and my sound system can actually go down really low.instead of buying expensive capacitors I would invest in a good speaker.
I have read also that linear regulated supply and smps are a bad choice for a highend amplifier.the only thing that it is good is manufacturers can bought semi conductor devices at a very cheap price when bought at large quantity compared to big transfo. and huge capacitor.besides it operates at high speed this creates rf signals and you have to put sheilds on this and will require a space in enclosure.
and smps requires feedback and should be fast enough than the amplifier..and reliabilty not so good.
and during transient signals raw power supply is the best.
no wonder how exotic my computer power supply is still cheaper...
regards,
joel
I have a vintage receiver only 15 watts per channel and my sound system can actually go down really low.instead of buying expensive capacitors I would invest in a good speaker.
I have read also that linear regulated supply and smps are a bad choice for a highend amplifier.the only thing that it is good is manufacturers can bought semi conductor devices at a very cheap price when bought at large quantity compared to big transfo. and huge capacitor.besides it operates at high speed this creates rf signals and you have to put sheilds on this and will require a space in enclosure.
and smps requires feedback and should be fast enough than the amplifier..and reliabilty not so good.
and during transient signals raw power supply is the best.
no wonder how exotic my computer power supply is still cheaper...
regards,
joel
Hi Harrison, the schematic in #1 is very much that of KRELL KSA50 of the early eighties with some minor modifications. The dual complimentary symmetry has a characteristic of sounding more powerful that it really is. In other words a 50w amp sounds much louder than expected. The MJL15002/3 are better suited I think than the 2SC5200
It is a very popular amp and produces very good results.
It is a very popular amp and produces very good results.
Last edited:
my work is finished...
I believed that I have reach the peak for this amp.I have done some research and making sure that I dont throw punches on air....
theres a lot of advantages offered by a dual and multi-layer pcb and believed this will solved bottleneck and makes the amp. be distinguished from the rest.
regards,
joel
I believed that I have reach the peak for this amp.I have done some research and making sure that I dont throw punches on air....
theres a lot of advantages offered by a dual and multi-layer pcb and believed this will solved bottleneck and makes the amp. be distinguished from the rest.
regards,
joel
Attachments
RAS200
Nico,
That is still playing with me. I have not manged to have a casing for it.
But when I feel like listening to it, than I will connect the PSU and speakers to sit down together)))
Sure it sounds very good and powerfull.
Kind regards,
Raj.
Nico,
That is still playing with me. I have not manged to have a casing for it.
But when I feel like listening to it, than I will connect the PSU and speakers to sit down together
)))Sure it sounds very good and powerfull.
Kind regards,
Raj.
I believed that I have reach the peak for this amp.I have done some research and making sure that I dont throw punches on air....
theres a lot of advantages offered by a dual and multi-layer pcb and believed this will solved bottleneck and makes the amp. be distinguished from the rest.
regards,
joel
Well done Joel, when does etching begin
10 FREE 1DIFFQC PCBs
There will be 10 FREE PCBs for 5 reviewers. You must be ready to assemble quickly once you receive the PCBs. $6 paypal shipping. Add your name here and make comments on proposed PCBs. They can roll out as soon as 07/27/2012
http://www.diyaudio.com/forums/solid-state/199196-new-dawn-1diffqc-amplifier-21.html
There will be 10 FREE PCBs for 5 reviewers. You must be ready to assemble quickly once you receive the PCBs. $6 paypal shipping. Add your name here and make comments on proposed PCBs. They can roll out as soon as 07/27/2012
http://www.diyaudio.com/forums/solid-state/199196-new-dawn-1diffqc-amplifier-21.html
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.