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Post by Deleted on Jun 11, 2016 4:33:26 GMT
It,s called control, and correct power delivery. Wait until you go surround sound it like LSD with out the prison sentence. Now for another trip___________________________________________________________________ by car to Morrison at Canvey for food cheese and coffee manly. oh and the best bit is the vinyl selection at Tesco just down the road he he
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Post by MartinT on Jun 11, 2016 7:44:35 GMT
I like under-run fans (12V fans run from 5V are my favourite), they move air virtually silently and can easily drop temps by 20C or more.
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Post by zappytheviking on Jun 13, 2016 14:09:14 GMT
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Post by Deleted on Jun 13, 2016 15:31:18 GMT
Wooow lovely how heavy  |
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Post by zappytheviking on Jun 13, 2016 15:40:21 GMT
Thank you.
Actual weight?
The case/cover is only 2-3kg.
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Post by MartinT on Jun 13, 2016 16:22:52 GMT
Very nice look, Zappy. The VU meters would be in keeping, but won't tell you much!
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Post by zappytheviking on Jun 19, 2016 21:31:15 GMT
Also I have rearranged the PSU which has with this simple mod will force the PSU board to close down in constant current mode. Less chance of smouldering FET,s Change R10 to 1K and R11 to 10K, Change R13 to 1K and R10 to 10K as in this circuit. I just started checking what parts I will need for PSU and bootstrap and perhaps protection board. A synopsis, checking on the changes. PSURemove relay www.audiochews.com/discussion/1608/building-colins-seca-kit/p12Unsure about details, straight wire and all is well? R10 - 1K R11 - 10K R13 - 1K and R10 - 10K , did you mean a different R?? BootstrapDidn't see parts numbers so I thought I would run it past you, these ok? x2 PANASONIC 100 µF, ± 20%, 35 V, 10 mmx2 DIODES INC. 1N4002-T Standard Recovery Diode, Single, 100 V, 1 A, 1 V, 30 A as per update seca.freeforums.net/thread/2/seca-kits-colin-wonfor |
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Post by Deleted on Jun 20, 2016 7:28:17 GMT
Also I have rearranged the PSU which has with this simple mod will force the PSU board to close down in constant current mode. Less chance of smouldering FET,s
Change R10 to 1K and R11 to 10K, Change R13 to 1K and R12 to 10K as in this circuit.
Corrected thanks Tommi
The Panasonic are OK, diodes ok
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Post by MikeMusic on Jun 20, 2016 7:45:28 GMT
Like the mirrored finish. Makes me think of 2001 (film that is)  |
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Post by zappytheviking on Jun 20, 2016 9:54:58 GMT
MikeMusic Hehe, that might be the look, modern tech from the 70s. @colin Excellent, updated. What of the PSU relay removed? Add a wire over what relay would be turning on/off?
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Post by Deleted on Jun 23, 2016 8:09:02 GMT
MikeMusic Hehe, that might be the look, modern tech from the 70s. @colin Excellent, updated. What of the PSU relay removed? Add a wire over what relay would be turning on/off? Dead bit here now I love the stamps thanks. the relay was originally used to stop the plop sound on turn on but the amps starts in a linear fashion so the plop was small so it was removed to reduce build costs only. |
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Post by MartinT on Jun 23, 2016 8:59:52 GMT
Love the avatar!
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Post by zappytheviking on Jun 23, 2016 10:46:53 GMT
Looking good there Colin.
Good to hear the part arrived, was a little paranoid if I should have sent it registered, the fates have smiled upon thy work once again.
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Post by Deleted on Jun 23, 2016 15:10:26 GMT
Looking good there Colin. Good to hear the part arrived, was a little paranoid if I should have sent it registered, the fates have smiled upon thy work once again. No the Blue God Wotan loves idiots like me.  |
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Post by Deleted on Jun 23, 2016 15:15:32 GMT
Not a selfie taken whilst in the Highlands last month, it was a fantastic day saw lots of lovely crits, and hugged lots of dear friends I miss. And got fed far to much on the Sunday by my Aunt and Uncle in Dalgety Bay. Uncle Tom makes my SSR using my patent and guess where the name came from:- www.root2.ltd.uk/The clue is the magic number for power,and my name. |
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Post by Deleted on Jul 7, 2016 15:12:07 GMT
OK you FET killer you, we had great time in NYC will post pics later, the thick stranded wire you used to extend the FET's legs (poor things) one strand had short circuit the Gate to the Source it was so thin I could barely see it. So the FET's went to Bi-Polar Haven and new ones have been mount on the cable but I have used eyelets to keep them tidy, also to make life easy for you I have used the same on the input terminal, so with the new FET's screaming and kicking to stay with me the board is on its way back to you to keep you warm next winter. Have fun. Now this is a chassis for a SECA mmmmm dribble nice.  |
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Post by MartinT on Jul 8, 2016 5:53:56 GMT
"Colin warms up New York..."
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Post by zappytheviking on Jul 8, 2016 11:17:57 GMT
Those are some amazing holiday snaps you put up, talk a about a view.
That tower would make a great SECA, even has its own lightning rod on top.
Again , thank you.
It's like high school, getting told the answer and smacking yourself, stray copper hair, geez.
I am looking at tutorials on amplifiers and trying to understand how things are working.
In that vein, could you tell me what failed on the board, any other bits that failed when FET got shorted?
Also have you put out a higher resolution circuit diagram?
Having a hard time reading part numbers while meditating on how the amplifier works.
Hopefully I will eventually be able to repair this circuit, want to keep it working the rest of the ride.
Next step, put together the PSU boards, a week or two.
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Post by Deleted on Jul 8, 2016 13:05:15 GMT
"Colin warms up New York..." It was a American 89F every day, god I wish I could drink beer,and not just water what waste. |
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Post by Deleted on Aug 27, 2016 3:22:16 GMT
OK Zappy, we have not anything from you for a while, is all OK?
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