http://www.diyaudio.com/forums/chip...-regarding-myrefc.html?highlight=myrefc+build
http://www.diyaudio.com/forums/chip-amps/134726-new-my-ref-rev-c-thread.html?highlight=myrefc+build
http://www.diyaudio.com/forums/swap-meet/71304-everything-required-assemble-myrefc-kookabura.html
This is the thread for posting and finding build information for the MyRefC PCBs.
If you can't find it in the above threads, then do it here.
http://www.diyaudio.com/forums/chip-amps/134726-new-my-ref-rev-c-thread.html?highlight=myrefc+build
http://www.diyaudio.com/forums/swap-meet/71304-everything-required-assemble-myrefc-kookabura.html
This is the thread for posting and finding build information for the MyRefC PCBs.
If you can't find it in the above threads, then do it here.
Awesome. Thanks Andrew. I hope the guys find and use the new thread.
edit: hmm the first and last link offer no information on building though...
Uriah
edit: hmm the first and last link offer no information on building though...
Uriah
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Here is the latest documentation compilation for all the beginners (and the not so).
MyRef_C_Ultimate_Documentation_v1.4.rar
MyRef_C_Ultimate_Documentation_v1.4.rar
Here http://www.diyaudio.com/forums/group-buys/160768-myref_c-ultimate-bom-14.html#post2110622
And here http://picasaweb.google.com/home?tab=mq
On the Picasa page there are a few pics at the top. Move down toward the bottom for some of the old build from the last MyREFC GB.
And here http://picasaweb.google.com/home?tab=mq
On the Picasa page there are a few pics at the top. Move down toward the bottom for some of the old build from the last MyREFC GB.
Sorry Udailey, but that picassa link points to a generic webpage of the site. You need a better link 😀
Regards,
Regi
Regards,
Regi
Sorry, here is better but not great set of pics
Picasa Web Albums - Uriah - Ultimate MyREF
http://picasaweb.google.com/udailey
Picasa Web Albums - Uriah - Ultimate MyREF
http://picasaweb.google.com/udailey
should I ask the Mods to remove the two threads from post 1 that have irrelevant information?
To all who have posted.
Can you request the Mods to remove your off topic posts.
To all who have posted.
Can you request the Mods to remove your off topic posts.
just to confirm how difficult it is to use "search", those three links in post1 came from a "myrefc + build" search result and were the only threads containing "myrefc" in the thread title.
So much for using "search"😡
So much for using "search"😡
Sorry Andrew, but I cannot understand exactly what are you asking to do with these threads. I'm sorry 🙁
Regards,
Regi
Regards,
Regi
Thanks regiregi for the .rar file. It is very helpful. I am using version 1.4.
As a newbie to this stuff, I am trying to really organize to build 4 kits in a batch style and have sorted out all components into test tubes in racks. I am having a little difficulty identifying some components. Some of my questions might help revise the BOM to reflect exactly what is in the kits.
D2, D3, and D4 appear to the the same 1N4001 diode.
There are two 3K3 resistors where one appears to be a 1/4 watt and the other a 1/2 watt resistor to go in R12, R37 slots. Which slot, R12 or R37, gets the bigger resistor? I know I should be able to read the schematic and figure it out. I am working on understanding the amp but is is a little tougher design than some to grasp the concept.
Has C34 been dropped from the build? I can't identify any capacitor as a 10 pF in any of my 4 kits.
Can 1/4 watt resistors be mounted in contact with the PCB?
I know to raise the higher wattage resistors 8mm for cooling.
If i am using a 60/40 solder with flux core, is additional flux overkill?
I am sure I'll have more questions but let the soldering commence.
TIA,
rick
As a newbie to this stuff, I am trying to really organize to build 4 kits in a batch style and have sorted out all components into test tubes in racks. I am having a little difficulty identifying some components. Some of my questions might help revise the BOM to reflect exactly what is in the kits.
D2, D3, and D4 appear to the the same 1N4001 diode.
There are two 3K3 resistors where one appears to be a 1/4 watt and the other a 1/2 watt resistor to go in R12, R37 slots. Which slot, R12 or R37, gets the bigger resistor? I know I should be able to read the schematic and figure it out. I am working on understanding the amp but is is a little tougher design than some to grasp the concept.
Has C34 been dropped from the build? I can't identify any capacitor as a 10 pF in any of my 4 kits.
Can 1/4 watt resistors be mounted in contact with the PCB?
I know to raise the higher wattage resistors 8mm for cooling.
If i am using a 60/40 solder with flux core, is additional flux overkill?
I am sure I'll have more questions but let the soldering commence.
TIA,
rick
D2 D3 and D4 were all supplied as 1N4001. R12 = 1/2W. 10pF is the tiny yellow cap marked 100. 1/4W resistors can contact PC board. Additional flux unnecessary with decent solder.
rick, D2, D3 and D4 are 1N4001.
For the two 3K3 resistors from different wattage, Uriah should answer. One is the input resistor in series with signal and the other one is in series with a 1nF cap between the input and the inverted input from the LM3886. I don't think neither of them will need to be 1/2W at all. But in the BOM, R12 is 1/2 and R37 is 1/4, so put it that way.
I don't know how the C34 kemet cap is, but a picture should help. Should be one of the smallest one. But it is for sure on the BOM.
The 1/4W resistors can be mounted directoly on the PCB.
You will not need flux at all if your solder and your iron and decent enough. Just give it a fast and hot solder process.
Regards,
Regi
For the two 3K3 resistors from different wattage, Uriah should answer. One is the input resistor in series with signal and the other one is in series with a 1nF cap between the input and the inverted input from the LM3886. I don't think neither of them will need to be 1/2W at all. But in the BOM, R12 is 1/2 and R37 is 1/4, so put it that way.
I don't know how the C34 kemet cap is, but a picture should help. Should be one of the smallest one. But it is for sure on the BOM.
The 1/4W resistors can be mounted directoly on the PCB.
You will not need flux at all if your solder and your iron and decent enough. Just give it a fast and hot solder process.
Regards,
Regi
Here is a bill of materials and schematic for the parts supplied in the kit for one channel. There are other bills in the threads, but this is what I actually received.
As Dario noted, parts used in the relay circuit can be generic industrial components as audio specialty parts are of no advantage. The relay circuit has a few problems and I will be modifying the circuit in my build. The attached file shows what I am changing and why.
As Dario noted, parts used in the relay circuit can be generic industrial components as audio specialty parts are of no advantage. The relay circuit has a few problems and I will be modifying the circuit in my build. The attached file shows what I am changing and why.
Yes, I am the author.
For what it's worth I measured some of the passive components in the kit on an impedance analyzer. The results are attached.
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