The Printed Board Assembly (PCB + components) could be directly screwed on heatsink, bottom plate enclosure (no vias)...
The cost for metal core PCB is surprisely cheap (35µm, 1.55mm thickness).
JP
The cost for metal core PCB is surprisely cheap (35µm, 1.55mm thickness).
JP
I almost finished wiring, but encountered one big problem, input selection boards do not work, not connecting any input. This is Volume and input boards bought called Biino from diy-audio-shop.de | Platinen und mehr (Birger Maass). Unfortunately the shop is closed from this summer and no answer from Birger. Hi is a member on this forum and I've sent PM but no answer too.
The main control board I received is a bit different than the schematic in the shop and it looks when I change the input nothing was sent to the input board.
Display works correctly, even the volume control board.
I am desperate now and if, just in case, anyone has experience with this Biino I would appreciate any help.
Damir
The main control board I received is a bit different than the schematic in the shop and it looks when I change the input nothing was sent to the input board.
Display works correctly, even the volume control board.
I am desperate now and if, just in case, anyone has experience with this Biino I would appreciate any help.
Damir
Hi JP, may I know what is a "metal core PCB" and who offers these types of PCB's, I haven't heard of it before.
PCB made of aluminum or even copper substrate vs FRP for better heat dissipation for SMT devices that rely on PCB as heatsink. LED lights use this a lot. But I see now that power amps with SMT MOSFETs or BJTs would benefit as well. There is a dielectric layer between the copper trace and the board itself.
@Ultima Thule
IMS pool – Aluminiumkern-Leiterplatten-Pooling von Eurocircuits – Eurocircuits
Only single electrical layer (more = other technologie see Würth) and avoid vias.
JP
IMS pool – Aluminiumkern-Leiterplatten-Pooling von Eurocircuits – Eurocircuits
Only single electrical layer (more = other technologie see Würth) and avoid vias.
JP
oh I see, that's excellent these types of aluminum PCB's have become more mainstream, probably the explosion of LED market have pushed it in favor to us diy'ers, I have to admit I am so badly updated these days, thanks for the info, vielen dank!
How can we help when we have no info on this design. I see on the web site some pcbs and a mcu.
Biino | diy-audio-shop.de
JP,
Is that a GW Mk3 in SMT?! Wow you are fast. It had no label and looks so different I couldn't be sure - but based on parts count, it is I believe a GW Mk3.
Is that a GW Mk3 in SMT?! Wow you are fast. It had no label and looks so different I couldn't be sure - but based on parts count, it is I believe a GW Mk3.
This is Biino control board, volume board and input board.
http://www.diy-audio-shop.de/produkt-kategorie/biino/
http://www.diy-audio-shop.de/produkt-kategorie/biino/
still need to know a bit more about the
still need to know a bit more about the
like where is the schematic you refer to.
Matching those SOT23's is a pain in the behind though. Although, truth be told, unmatched transistors in balanced configurations sometimes might help to increase second harmonic distortion vs third for a more pleasing sound. 🙂
Never understood why is a pain in the neek with sot 23. Or you do not have equipment for measuring. What about Toshiba sot363 lots of room for measuring a little small to the sot23.
Unmatched for more pleasing sound aliexpress, eBay,mouser,digkey for harmonics you like a nice mix so be happy
This is great news ! 🙂
I'm very glad you have solved the Biino problem and finished your preamplifier.
How is the listening experience with this new setup ?
I'm very glad you have solved the Biino problem and finished your preamplifier.
How is the listening experience with this new setup ?
You know, for me it's hard to say as this is my design.
I am very satisfied what I hear. I hope some of those who built this preamp will be satisfied too.
GainWire mk3 finally playing in my system.
Loudspeakers: ORION from Linkwitz
Power amps:---100W CFA three channels per loudspeaker
Crossover:------Analog active from Linkwitz
Sources:--------Benchmark DAC2
------------------Denon DVD 3910
------------------TT with Denon MC pickup MC 103
Loudspeakers: ORION from Linkwitz
Power amps:---100W CFA three channels per loudspeaker
Crossover:------Analog active from Linkwitz
Sources:--------Benchmark DAC2
------------------Denon DVD 3910
------------------TT with Denon MC pickup MC 103
Attachments
Damir:
Looks good!
I don't recall seeing what you finally decided to use for volume control?
mlloyd1
Looks good!
I don't recall seeing what you finally decided to use for volume control?
mlloyd1
Hello Damir,
good news, that you make your volume and input boards working. I dont know, what happens to Birgers shop. He closed it more than one years ago and the shop homepage is also in dying state.What has been the problem wih Biino MK2? I use Biino MK1 with your GW MK3. and it's a pleasure to listen to it.
Maybe i can finish your my CFA120 lateral amp soon. It's your design with TO-3p Exicons.
On my first layout design, i had to do some workarounds (layout errors, but you know that 😉 ). I think i fixed now all, and it is already mounted on the heatsink for first powering up.
All the best
Günni
good news, that you make your volume and input boards working. I dont know, what happens to Birgers shop. He closed it more than one years ago and the shop homepage is also in dying state.What has been the problem wih Biino MK2? I use Biino MK1 with your GW MK3. and it's a pleasure to listen to it.
Maybe i can finish your my CFA120 lateral amp soon. It's your design with TO-3p Exicons.
On my first layout design, i had to do some workarounds (layout errors, but you know that 😉 ). I think i fixed now all, and it is already mounted on the heatsink for first powering up.
All the best
Günni
Hello Gunni,
Birger sent me new PCB mk2(he appeared after one year), first one he sent to me was not good, I don't know what it was, it says mk2 but the was difference comparing to the schematic. I short it's working now.
I used original Hitachi in the lateral CFA, but it should work with Exicons too. You know that amp I use in my other room and it's really really good, don't hesitate to build it.
Best wishes
Damir