Replaced, heat problem of 29/30
totally gone!
When amp is in rest, one channel stays cold, the other one gets about 30degree Celcius. Playing music the warm one climbs to 35C, while the other one stableizis at about 31C. So no progress on that front...
Thanks for your hints,
Regards, Ed.
This is normal. I have a slightly warmer channel on my amp as well. To get perfect simetric temperature operation you need to match Q12 on right/left channels and output mosfet's Q15 ... Q18 as well. But thanks to feed forward error correction this not matter much.
Regards
Regards
Hi Tibi,
I'm looking for a case that fits the boards, but I couldn't find information about the size of the boards (including the MOSFETs lying both sides on the radiator).
Alternatively, do you have a recommandation for a case?
I need sufficient ground space to host a 500VA toroid trafo (diameter 115mm).
Thanks
Best regards
Christophe
I'm looking for a case that fits the boards, but I couldn't find information about the size of the boards (including the MOSFETs lying both sides on the radiator).
Alternatively, do you have a recommandation for a case?
I need sufficient ground space to host a 500VA toroid trafo (diameter 115mm).
Thanks
Best regards
Christophe
Hi Christophe!
The lenght of the single output board is 155mm. 60mm wide.
The length of the double output board is 175mm, 60mm wide.
With the mosfets mounted, you can fit the amp on a 100mm high heatsink. (with suited bending of the mosfet's legs).
Succes with finishing the beauty!
Ed
The lenght of the single output board is 155mm. 60mm wide.
The length of the double output board is 175mm, 60mm wide.
With the mosfets mounted, you can fit the amp on a 100mm high heatsink. (with suited bending of the mosfet's legs).
Succes with finishing the beauty!
Ed
Attachments
Last edited by a moderator:
It was recorded with an iPhone and even I will do a better recording, still will not do justice to this amplifier.
I suggest you to build Q17 and enjoy one of the best DIY amplifier.
Brgds
I suggest you to build Q17 and enjoy one of the best DIY amplifier.
Brgds
Last edited by a moderator:
Hello,
Happy New Years everyone!
To celebrate the new year, I printed a new PCB design of the Q17 P2 that I called Q17 TURBO. This is my third attempt to build a working Q17 P2. Hope this new year will bring happiness.
PCB size: 190 x 75 mm
I need to find the time to assemble a board now. 😎
Steve.
Happy New Years everyone!
To celebrate the new year, I printed a new PCB design of the Q17 P2 that I called Q17 TURBO. This is my third attempt to build a working Q17 P2. Hope this new year will bring happiness.
PCB size: 190 x 75 mm
I need to find the time to assemble a board now. 😎
Steve.
Attachments
Hi Tibi, I received my boards today. They look great.
Thx
Just waiting for the case and the transformer now...
Thx
Just waiting for the case and the transformer now...
Hi Tibi.
I would like to build the Q17 amp. But I se at mouser that several components are obsolet.
So to my question, will there be an updated parts list?
Thanks
FlBay
I would like to build the Q17 amp. But I se at mouser that several components are obsolet.
So to my question, will there be an updated parts list?
Thanks
FlBay
FIBay,
This information is documented in project description on GitHub and also here
https://www.diyaudio.com/community/...approach-to-perfect-sound.374507/post-7028584
For those looking for cheap alternative here is a schematic.
Please take note that some equivalent parts are not pin compatible with PCB.
Brgds
This information is documented in project description on GitHub and also here
https://www.diyaudio.com/community/...approach-to-perfect-sound.374507/post-7028584
For those looking for cheap alternative here is a schematic.
Please take note that some equivalent parts are not pin compatible with PCB.
Brgds
