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Combined Onaudio thread. (23 threads)

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#664
Only the Vishey RN60's will be an issue, all others should fit fine.

I couldnt resist so dropped into the office today to pick up my Mouser box!!!

All of my resistors are stuffed and trimmed. 🙂

I always mount resistors 3-5mm off the board as a rule, this seemed to help on this board with the tight spacing. A few parts are on the underside as discussed earlier in the thread.

Back to the bench 🙂
 
#665
I mounted all the parts on the component side.

7907188780_080cd09c47_z.jpg

7828948888_f3460bf47c_z.jpg
 
#666
WSJ,
I notice that you have the transistors mounted in a small riser. Is this so you can change these for others or am I missing something here? That looks much nicer than soldering them directly to the board. What is the part # for that and where do they come from?

Steven
 
#667
Kindhornman said:
WSJ,
I notice that you have the transistors mounted in a small riser. Is this so you can change these for others or am I missing something here? That looks much nicer than soldering them directly to the board. What is the part # for that and where do they come from?

Steven
Click to expand...

Push them out of an IC socket.

114412.jpg


http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_114412_-1

720-AG2D

http://www.aboveboardelectronics.com/thomasandbetts/pdf/au_sockets/dip_700.pdf

http://www.ebay.com/itm/720-AG2D-AUGAT-2-1437542-9-20-Pin-IC-CARRIER-SOCKET-/370297041255?pt=LH_DefaultDomain_0&hash=item56376c7167
 
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#669
Anyone can tell me where the link is to the schematic on this design.

WSJ, Now I need to look at the schematic as I see that in a few places it appears you have left out the components and run a straight piece of wire bypassing some values. I will have to look over the notes very carefully to see where in the schematic those are and what you are leaving out. Are these areas that you plan on making value mods depending on the final results of testing? Just saw that and said to myself, he had to have a good reason to do that.....
 
#670
Kindhornman said:
Anyone can tell me where the link is to the schematic on this design.

WSJ, Now I need to look at the schematic as I see that in a few places it appears you have left out the components and run a straight piece of wire bypassing some values. I will have to look over the notes very carefully to see where in the schematic those are and what you are leaving out. Are these areas that you plan on making value mods depending on the final results of testing? Just saw that and said to myself, he had to have a good reason to do that.....
Click to expand...

I was missing the 3 volt zeners, so made a different current source. No need to make any changes, the current source on the original design works fine.
 
#671
Has anyone else order straight off the BOM and ended up with TIP142's in the TO-220 package rather than the TO-247 package! infact the BOM lists SOT93 in the package type??
I should have checked the datasheet but luckly RS here in NZ have them in stock.
 
#673
Thanks WSJ, you had me thinking I missed something in the conversation and Thanks Dagwood for the post #. I'll print it out and have it on hand. I will have to look at the parts I received and see if I have the same problem with parts type. The resistor misquote was what originally caught me by surprise.

Steven
 
#678
Dagwood said:
Has anyone else order straight off the BOM and ended up with TIP142's in the TO-220 package rather than the TO-247 package! infact the BOM lists SOT93 in the package type??
I should have checked the datasheet but luckly RS here in NZ have them in stock.
Click to expand...

Thanks Dagwood for pointing out that.🙂 Thank you for being understanding too. 😉Will fix that today. Apologies for the inconvenience.

These should do just fine TIP142G ON Semiconductor | TIP142GOS-ND | DigiKey , TIP142 STMicroelectronics | 497-2541-5-ND | DigiKey
 
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