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#465
Here are the caps for the output board.

C101 80-C320C104K1R 1.uF MLCC X7R
C102 647-UBT2A220MPD 22uF high temp electrolityc
C103 647-UPW2A471MHD 470uF High temp electrolytic
C104 80-C320C104K1R 1.uF MLCC X7R
C105 647-UBT2A220MPD 22uF high temp electrolityc
C106 647-UPW2A471MHD 470uF High temp electrolytic
C107 598-CD15ED330JO3F 33pF Silver Mica
C108 505-MKS21/100/10 1yF Metallized Polyester
C109 598-CD15ED330JO3F 33pF Silver Mica
C110 80-C320C104K1R 1.uF MLCC X7R
C111 647-UPS2A470MPD 47uF electrolytic
C112 80-C320C104K1R 1.uF MLCC X7R
C113 647-UPS2A470MPD 47uF electrolytic
C114 505-MKS4.68/100/10P
C115-C124 647-UBT2A220MPD 22uF high temp electrolityc
C125 647-UPW2A471MHD 470uF High temp electrolytic
C126 80-C320C104K1R 1.uF MLCC X7R
C127 647-UPW2A471MHD 470uF High temp electrolytic
C128 80-C320C104K1R 1.uF MLCC X7R
C129 505-MKS4.1/100/10P .1uF PET
 
#468
Here's a corrected list for the output board and a list for the CFA-XH input board.

C101 80-C320C104K1R .1uF MLCC X7R
C102 647-UBT2A220MPD 22uF high temp electrolityc
C103 647-UPW2A471MHD 470uF High temp electrolytic
C104 80-C320C104K1R .1uF MLCC X7R
C105 647-UBT2A220MPD 22uF high temp electrolityc
C106 647-UPW2A471MHD 470uF High temp electrolytic
C107 598-CD15ED330JO3F 33pF Silver Mica
C108 505-MKS21/100/10 1yF Metallized Polyester
C109 598-CD15ED330JO3F 33pF Silver Mica
C110 80-C320C104K1R .1uF MLCC X7R
C111 647-UPS2A470MPD 47uF electrolytic
C112 80-C320C104K1R .1uF MLCC X7R
C113 647-UPS2A470MPD 47uF electrolytic
C114 505-MKS4.68/100/10P
C115-C124 647-UBT2A220MPD 22uF high temp electrolityc
C125 647-UPW2A471MHD 470uF High temp electrolytic
C126 80-C320C104K1R .1uF MLCC X7R
C127 647-UPW2A471MHD 470uF High temp electrolytic
C128 80-C320C104K1R .1uF MLCC X7R
C129 505-MKS4.1/100/10P .1uF PET


C1 505-MKS4C044705BKSSD 4.7uF PET
C2 505-FKP2150/100/5 150pF Polypropylene
C3 647-UFW2A101MPD 100uF 100V Audio grade electrolytic
C4 647-UFW2A101MPD 100uF 100V Audio grade electrolytic
C5 505-MKP20.1/100/5 .1uF Polypropylene
C6 505-MKP20.1/100/5 .1uF Polypropylene
C7 647-UKA1H102MHD 1000uF 50V Audio grade electrolytic
C8 647-UKA1H102MHD 1000uF 50V Audio grade electrolytic
C9 505-MKS2.47/100/10 .47uF Polyester
C10 505-MKS2.47/100/10 .47uF Polyester
C11 80-C320C104K1R 1.uF MLCC X7R
C12 80-C320C104K1R 1.uF MLCC X7R
C13 598-CD15ED330JO3F 33pF Silver Mica
C14 598-CD15ED330JO3F 33pF Silver Mica
 
#469
There are many other choices available. These are what I use. The electrolytics on the output board are all high temperature rated because they are so close to the output devices and drivers. All the X7R decoupling caps on the output board could be .02uF depending on what schematic you follow. I think OS usually specs .02uf there.

The electrolytics on the input boards are all audio grade but are the highest temperature rating available from Mouser
 
#470
thanks
good list to help others
any upgrade going with mundorf silver gold caps and rodersteen gold resistors?

anyone have a chance to have a look at the question a few back i asked about markings on the 2 schematics?
cfa board r5 shows 101.85 and 200r
r11 shows 470 and 200r

ops board r106 shows 199 and vbias 500r
 
Last edited:
#471
Personally I don't put much stock in boutique type parts. I have seen it written that if its touted for use in audio it probably failed at some other more critical application. I kinda like that idea.

Any parts chosen with characteristics that are suited to the applications at hand from any reputable main stream manufacturer will do just fine. No need to get exceedingly spendy on little things like resistors and capacitors.

Of course, anyone can build according to personal taste and budget.
 
#473
jkuetemann said:
Personally I don't put much stock in boutique type parts. I have seen it written that if its touted for use in audio it probably failed at some other more critical application. I kinda like that idea.

Any parts chosen with characteristics that are suited to the applications at hand from any reputable main stream manufacturer will do just fine. No need to get exceedingly spendy on little things like resistors and capacitors.

Of course, anyone can build according to personal taste and budget.
Click to expand...


I've notice audio grade caps don't have good temperature ratings which goes along with that theory. There isn't anywhere in an amplifier that isn't fairly warm when it's running hard. It doesn't make much sense to use a cap that has a shorter lifespan with heat.
 
#474
evanc said:
I believe some of the resistors you have questions about are variable resistors. You are seeing the value of h resistor as well a about where it will be set.
Click to expand...

ok i think i'm starting to understand solid state.
i made a mistake in my order for these positions
so correct me if i'm wrong
cfa r5 and r12 are vara resistor value 200r and set to r5 101.85 and r12 set to 120
the ops r106 is 500r value and set to 199?
 
#475
GKF said:
ok i think i'm starting to understand solid state.
i made a mistake in my order for these positions
so correct me if i'm wrong
cfa r5 and r12 are vara resistor value 200r and set to r5 101.85 and r12 set to 120
the ops r106 is 500r value and set to 199?
Click to expand...

That's right, but this is not related to solid state. Variable resistors are variable resistors, in solid state or not 😉
 
#476
BOMs Needed Please

BOMs PLEASE

Well if any one here knows where the BOMs are,
please post a link to it.

I'm trying to combine them.

so far JWs posted 2 of them. I'll start a wiki so it's easy to find.

in the excel, along the bottom are things that look like folders,
these are called sheets. that has the name, and then each will have it owns place.

I'm hoping to save it in the lowest excel format.

So far I have 2 and they are capacitors.

Cheers.
 
#477
Well,

Doesn't look like I can save a spread sheet up here in DIYland.

If anyone know's how let me know as I'm all ears.

There is the gallery, but it won't take it.
not sure if I can just embed it in the wiki.

If you go to wiwi on the middle of the DIY link bar next to
gallery, then select the second wiki link down....LIST.

There in the list you will find the slewmaster resources.
 
#478
When you find a useful post

Hi when you find a helpful post you can link it over in the wiki.

For right now this would be the safest way to do it.

If you know a better way I'm all ears.

be on the helpful post.
Highlight or select the post number.
Once that is selected, go up to the URL of your browser
and copy the URL.

Then, go to WIKI: LIST: Slewmaster Resources
click on that and go to it.

THEN

Select the tab for Discussions

That is like a forum thread within the wiki
so leave a comment about what it is and
past the link there.

That will take me or anyone to that post.

We can then go through it and find all the good
stuff we need.
 
#479
SyncTronX said:
Well,

Doesn't look like I can save a spread sheet up here in DIYland.

If anyone know's how let me know as I'm all ears.

There is the gallery, but it won't take it.
not sure if I can just embed it in the wiki.

If you go to wiwi on the middle of the DIY link bar next to
gallery, then select the second wiki link down....LIST.

There in the list you will find the slewmaster resources.
Click to expand...

You can share virtually any file here.
Pack your spreadsheet into a zip file.
Tap Post Reply.
Tap Manage Attachments below the message window.
Upload your zip file.
That's it. Easy 😛
 
#480
GKF said:
" i just want a schematic that fits the board i have and use the mosfet it was designed for period."


Subsequent posts sound like this is squared away. I felt some confusion was happening by the use of "mosfet" as a generic term. This lead others to believe the mosfet path was the desired one, when actually it is the desire to go with the type of device the board was designed to use without modification (bjt). "Transistor" may be a better choice for a generic term.

Ignore this if it adds confusion rather than clarifies.
Click to expand...
 
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