Mirrored PCB layout
Hi OS, here is my PCB layout with the same "mirror concept" as far I could (no labels) only to show you how I did it, trying to maintain "symmetry" (equal length tracks) to avoid parasitic imbalance, anyway the circuit is highly immune to parasitics.
Cheers
Arturo
Hi OS, here is my PCB layout with the same "mirror concept" as far I could (no labels) only to show you how I did it, trying to maintain "symmetry" (equal length tracks) to avoid parasitic imbalance, anyway the circuit is highly immune to parasitics.
Cheers
Arturo
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On AX1.3VB: D1,D2 seem puny as BOM 1N914's. Board pictures show beefy diodes that look like 1N4000 series? Minor issue I know.
Think I need a new multimeter
Finally able to get back to my work after the flood waters have fallen. You can see how high the water went by the marks near the top of the roller doors. It reached the 2nd floor in the offices. There is still an ocean of water around the workshop. Goodbye to all my tools.
Pete.
Finally able to get back to my work after the flood waters have fallen. You can see how high the water went by the marks near the top of the roller doors. It reached the 2nd floor in the offices. There is still an ocean of water around the workshop. Goodbye to all my tools.
Pete.
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Oh, heard about that on radio, but didn't have the opportunity to see Tv or net. All that with rain?! This is the end of the world.
So, take a look at what is happening in Rio de Janeiro... more than 350 people died due to recent floods this january!
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Somewhere around 2050 things are going to be in very bad shape.
Overpopulation - Wikipedia, the free encyclopedia
Overpopulation - Wikipedia, the free encyclopedia
Hi Hugh
Not often we agree, but in this case we agree 100%
Class D is the solution. 🙂
Cheers
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On to peace and class AB...
Saw that movie , BG. Krisfr ,(member) gave me some much needed scope probes and FR-4 , for which I thank him dearly. 🙂🙂 (Below 1) is .1mv/div of the AX/PB250 noise floor. I can hear nothing , even with my new mongrel ready speakers (below 2) ... but the CRO shows the "grass" nicely. Playing with the manual exposure is tricky , but my scope shots will eventually improve.
Another big help is to have some awesome loudspeakers (at least mids and tweeters), to hear the subtle acoustics. GOLDEN ... between 800 -20K . 🙂
Makes 10X the difference than a topology change.
And last (Below 3-4) , to burn some more juice with too much equipment, and my "big scope".. 😀
OS
Saw that movie , BG. Krisfr ,(member) gave me some much needed scope probes and FR-4 , for which I thank him dearly. 🙂🙂 (Below 1) is .1mv/div of the AX/PB250 noise floor. I can hear nothing , even with my new mongrel ready speakers (below 2) ... but the CRO shows the "grass" nicely. Playing with the manual exposure is tricky , but my scope shots will eventually improve.
Another big help is to have some awesome loudspeakers (at least mids and tweeters), to hear the subtle acoustics. GOLDEN ... between 800 -20K . 🙂
Makes 10X the difference than a topology change.
And last (Below 3-4) , to burn some more juice with too much equipment, and my "big scope".. 😀
OS
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I got to see how "dirty" my line supplies were...
what type FR-4 was that ? 2 oz. ??THANKS.. 🙂
OS
That is CEM not FR-4 and it is 2 oz.
You have got to split the front and back supplies, just for FUN.
You have got to split the front and back supplies, just for FUN.
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Those speakers look just the ticket for a tri-amp project. Mind you, I can't hear past 14kHz.
Sandy,
I would never waste money on a new car, though I'd be tempted to buy a used Lexus LS430.
Maybe I'm not making enough money, huh? Wonder why that is? Care to be my marketing manager?
Cheers,
Hugh
I would never waste money on a new car, though I'd be tempted to buy a used Lexus LS430.
Maybe I'm not making enough money, huh? Wonder why that is? Care to be my marketing manager?
Cheers,
Hugh
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Joined 2009
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