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Old 23rd July 2012, 09:52 PM   #11
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Quote:
Originally Posted by ajst2duk View Post
These are bi-polar as specified in tyhe BOM - that means they do not have a +/ve and -/ve side, you just solder them in with one leg either side of the dotted line.
Okay, so it doesn't matter where I put the legs as long as there's one leg on either side of the line?
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Old 24th July 2012, 08:14 AM   #12
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Yes that's right. These caps have the incoming signal running through them to block any existing DC - its common to have a wide range of mounting holes as these caps can get very large when using PIO caps which many prefer.
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Old 24th July 2012, 11:40 AM   #13
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Ah, okay
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Old 3rd August 2012, 02:54 PM   #14
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I've winded one of the inductors today. Hard work!

I have no idea how it's supposed to be done so I just did how I thought it was supposed to be done.
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Old 3rd August 2012, 05:43 PM   #15
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Click the image to open in full size.
Is that how it is supposed to be mounted? The little surface mounted green thing that I've posted pictures of earlier.


Click the image to open in full size.
And in this image, there's supposed to be some diodes mounted parallell with the red resistors but I don't know which way they are supposed to be mounted. Which side should the anode/cathode be on?

And then I have two other diodes called this
Diode Zener 10V 500mW DO-35
Diode Zener 13V 500mW DO-35
They're in the same bag, they're the same size and appear to look exactly the same I think. How do I know which is which?
Click the image to open in full size.
Click the image to open in full size.
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Old 3rd August 2012, 11:58 PM   #16
dangus is offline dangus  Canada
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Surface mount devices are usually mounted so you can read the part number or value, but I don't see why it won't work as long as it has been soldered securely.

Are those power transistors supposed to be mounted like that, metal side up? I guess that would make it possible to install a heat sink.

If there are supposed to be diodes mounted in parallel with the resistors, there should be a diagram or clear written instructions about that. 41Hz should be supplying you with this information. If it isn't clear, they should be updating their docs accordingly.

The diodes have the part numbers printed on them. You can compare them with the b.o.m.
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Old 4th August 2012, 10:50 AM   #17
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Quote:
Originally Posted by dangus View Post
Surface mount devices are usually mounted so you can read the part number or value, but I don't see why it won't work as long as it has been soldered securely.

Are those power transistors supposed to be mounted like that, metal side up? I guess that would make it possible to install a heat sink.

If there are supposed to be diodes mounted in parallel with the resistors, there should be a diagram or clear written instructions about that. 41Hz should be supplying you with this information. If it isn't clear, they should be updating their docs accordingly.

The diodes have the part numbers printed on them. You can compare them with the b.o.m.
I think the power transistors should be like that. Not sure but it feels logical. I'll check the schematics and see if it makes any sense about the diodes.
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Old 4th August 2012, 06:36 PM   #18
Enzo is offline Enzo  United States
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Your zener diodes should have some tiny numbers on them, do you have a magnefying lens?
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Old 4th August 2012, 06:48 PM   #19
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Quote:
Originally Posted by Enzo View Post
Your zener diodes should have some tiny numbers on them, do you have a magnefying lens?
Only a tiny one
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Old 4th August 2012, 06:51 PM   #20
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The first image of the diodes (J7WUo.jpg) I can see a "5243B" mark which means it's the 13V part (IN5243)

the other one (6VLro.jpg) is faint but you should see 1N5240B on it which is the 10V part.
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