Studio Reference Amplifier

[coolet]

hi coolet
greetings since you are a pcb expert can a pcb software make a
pcb from the schematic have KICAD SOFTWARE using schematic capture
editor is it possible
thanking you
andrew lebon

yes orcad is capable from schematic to layout. but this is well done in digital circuit. for audio it is much better to use manual routing. i don't know about kicad i never use that software.

 

[apexaudio]

Coolet,
Please, can you share 'reverse transistor layout' version of SR50 pcb.
Thank's

 

[coolet]

yes apex i was preparing it.. actually it was completed yesterday only small tweak. 😉

 

[Mitchel]

Apex,

I've made another PCB layout for the power supply unit. It's biiger than yours, and most people will certainly use yours because of size, but I prefer a more symetrical layout, and with larger tracks, for heavy current capability.

I also made provision for TO-220 diodes (I love the MUR series). You can use MUR1560. I also installed snubber capacitors in parallel with the rectifier diodes.


View attachment Apex Regulated PSU - Nabuco Layout.pdf

 

[apexaudio]

Apex,

I've made another PCB layout for the power supply unit. It's biiger than yours, and most people will certainly use yours because of size, but I prefer a more symetrical layout, and with larger tracks, for heavy current capability.

I also made provision for TO-220 diodes (I love the MUR series). You can use MUR1560. I also installed snubber capacitors in parallel with the rectifier diodes.


View attachment 191828

That is nice profesional pcb, and I'm not sure for: 'most people will certainly use yours because of size', I first will use your pcb🙂
Regards and thank's for share.

 

[Mitchel]

Thank you Apex! I'm happy to help, as you helped us with your very nice circuits!

 

[apexaudio]

Thank you Apex! I'm happy to help, as you helped us with your very nice circuits!

I suggest you to use three pins dual diode MUR1640CT or BYV42 becouse mehanical reason. Pins are to thin, and two pins can be easy broken with three pins that's not hapen.
Regards

 

[blmn]

yes orcad is capable from schematic to layout. but this is well done in digital circuit. for audio it is much better to use manual routing. i don't know about kicad i never use that software.

Very good job Apex!

I´m using Diptrace for PCB design. A very good software even in its free version.

Regards,

 

[apexaudio]

I have not pcb layout for this shunt regulated PSU for preamps, if someone have time for pcb design...

 

[apexaudio]

Very good job Apex!

I´m using Diptrace for PCB design. A very good software even in its free version.

Regards,

Do you mean 'good job Coolet' or 'good job Mitchel' for pcb designs?
Regards

 

[blmn]

I mean good job for you regarding the amp.

regards,

 

[apexaudio]

I mean good job for you regarding the amp.

regards,

Thank's, if you think this amp is valuable for diyers🙂

 

[apexaudio]

Regulated PSU 30years old with MJ15003/15004.

 

[ostripper]

Regulated PSU 30years old with MJ15003/15004.

That is how long DIY should last. 🙂
OS

 

[apexaudio]

That is how long DIY should last. 🙂
OS

...and how 'new schematics' are old 😉

 

[radio]

Mile Hi!
With which voltage is supplied Audio Amplifier APEX SR50?😡
Greeting,

 

[apexaudio]

Mile Hi!
With which voltage is supplied Audio Amplifier APEX SR50?😡
Greeting,

PSU for SR50: +/-45V DC rail voltage.
Regards

 

[radio]

PSU for SR50: +/-45V DC rail voltage.
Regards

Mile, and can be eaten with a + /-38V for 4oma load on exhibit?🙄😕
Regards,..

 

[vdi_nenna]

Unbalanced Studio Reference? Someone should say it.

 

[apexaudio]

Mile, and can be eaten with a + /-38V for 4oma load on exhibit?🙄😕
Regards,..

Yes +/-38V DC rail voltage for SR50 will be OK useing 4 or 8 oma load.
Regards