Turn the amplifier module 180deg with the heatsink facing the toroid , with the current arrangement u have a possibility of picking up hum from the toroid , keep the amplifiers gain stage furthest away from the toroid..
Discrete Dynamics Amplifier:
- Thread starter hydrovac
- Start date
keith_correa
Well-Known Member
Isn't that 30A filter massive overkill? 
Oh the wiring looks different from the 120w version. Would have been nice to have retained the signal connector side by side. Same for the outputs.
MaSh
Oh looking at the pictures its a single PCB board having both the channels. I was presuming like individual channels are 2 separate boards, hence the size being big. But does not seems to be, then I think cabinet should be good enough.
Best of luck.
Best of luck.
The proof of the pudding is in eating. Waiting for the pudding to be cooked.
Thanks!
Here i am trying to distribute the weight to both sides... will try this orientation to begin with and observe.
It sure is keith! at the moment i have this filter only... i can fair exchange it with a lessor current one (10 amps), if anyone is willing to do so.Isn't that 30A filter massive overkill?
Yes, Ramesh... it is a standard width cabinet.
The pudding started cooking capt!The proof of the pudding is in eating. Waiting for the pudding to be cooked.
After a long wait, finally recd the chassis today.
Side panels:
Front and Back Panels:
Top and Bottom plates:
Screws for the assembly:
Trying test fitting:
Panels fit perfectly:
Weighs 5 Kgs, bare shell:
Stay tuned for updates on the build:
...
Last edited:
flat_listener
Active Member
Looking nice... may i know the source for chassis?
guess it is from Beginner_N
guess it is from Beginner_N
Thanks Ramesh, i will come to that later.
Made a small run on the layout to be...
...
Will the invite to taste be while cooking or after it's over. I'm waiting.
This is a customized version of DD power amp...
its not a transformer, an EMI/RFI Filter on mains.
This broth doesn't need many cooks capt...Will the invite to taste be while cooking or after it's over. I'm waiting.
You got it... something like 15 Amps should be good enough, to take care of the inrush current.Now I understand why the rca jacks are close to iec socket
looking good let me know what current rated rfi/emi filter do you need instead of that big elcom one.
...
Let me check if I have any 15a emi filter pcb board and I will ship it to you on my return to IndiaThis is a customized version of DD power amp...
its not a transformer, an EMI/RFI Filter on mains.
This broth doesn't need many cooks capt...
You got it... something like 15 Amps should be good enough, to take care of the inrush current.
...
Thanks Ramesh, time being will use the 30 Amps filter.
Checking the inventory for hook up wires, lugs connectors etc.,
Luckily, have most items to keep the build process rolling.
1.0, 1.5 and 2.5 mm.sq hook up cables.
Spade clips, Lugs and sleeves: (have to locate my crimping tool, must be either at home or in the factory)
Heat shrink sleeves and co-axial signal cable:
...
Little more progress:
Had to do small alterations to the back panel... the holes for speaker binding posts are round, whereas the isolation washers have to be notched into the mounting surface to prevent rotation of the binding post after installation.
Laser cut round holes:
The floating washer (top right):
Had to file it to this shape:
The floating washer fits snugly:
My nail file set comes in handy for the job:
The mains at 232V, checking the secondary AC voltages:
Va 43.5V
Vb 43.2V:
End to end 86.7V:
The auxiliary secondary:
Va 10.17V
End to end 20.8V:
All the voltages are showing proper values, time to finish wiring:
Speaker wires, Signal cables all hooked up, all set for firing... waiting for Anikets instructions on setting up bias.
...
Had to do small alterations to the back panel... the holes for speaker binding posts are round, whereas the isolation washers have to be notched into the mounting surface to prevent rotation of the binding post after installation.
Laser cut round holes:
The floating washer (top right):
Had to file it to this shape:
The floating washer fits snugly:
My nail file set comes in handy for the job:
The mains at 232V, checking the secondary AC voltages:
Va 43.5V
Vb 43.2V:
End to end 86.7V:
The auxiliary secondary:
Va 10.17V
End to end 20.8V:
All the voltages are showing proper values, time to finish wiring:
Speaker wires, Signal cables all hooked up, all set for firing... waiting for Anikets instructions on setting up bias.
...
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