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Old 24th February 2013, 11:34 AM   #2841
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Quote:
Originally Posted by Bensen View Post
totaly of my own hand
Bensen,

now that's what I call short gate stopper leads.
(as a precaution, you might consider a drop of silicon on their solder joints. think subwoofer and vibration, suspension bridge)

For lack of finding a clip of Limburg Boven : Rowwen Hèze - Limburg - YouTube
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Old 24th February 2013, 12:14 PM   #2842
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I did have the change to see Bensen his amp in and I can say it looks even much better in real live.
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Old 24th February 2013, 03:34 PM   #2843
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You saying he drilled some vent holes in the HPL bottom panel in the meantime ?
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Old 24th February 2013, 07:48 PM   #2844
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Default Dx Super A

Not clean, not ready but already looking good.

I will replace driver's heatsink.

regards,

Carlos
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Old 24th February 2013, 09:05 PM   #2845
Bensen is offline Bensen  Belgium
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Thanks guys for the feedback!

Jacco, Patrick (meanman) means that the especially the wood looks better in real life. Concerning the holes in the bottomplate; they are not necesarry, the heatsinks are a lot overdimenioned.

About the short gate stopper leads; I blowed already 10 pairs at least of these beauties (2sk1530/2sj201), I learned my lesson.
The way I solder the OPS to the PCB when mounted to the heatsinks is very easy, see the picture below.

See post #123 for some more data and simulation results.
Amp design for subwoofer and wideband duty
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Old 25th February 2013, 08:31 AM   #2846
gatabil is offline gatabil  Turkey
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Default case detail

Quote:
Originally Posted by PMA View Post
One of my preamps (top)
Hi PMA ,
Can you give details of the aluminum case. What is the web site of the product
regards.
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Old 25th February 2013, 12:48 PM   #2847
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Quote:
Originally Posted by Bensen View Post
Concerning the holes
I didn't count on you not having thought that through, think of it as asking how it turned out.
Even Kerafol for the Hitachi BOBs, I see. (zware voet ? )

Good to see others use HP laminate board for (top)/bottom panels.
When faced with having to lower a transformer by half an inch through the bottom, I ended up with a sub-chassis Meteon.
The edges make it less attractive for the top, but wonderful material for bottom panels.
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Old 1st March 2013, 03:56 AM   #2848
CBS240 is offline CBS240  United States
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My latest home brew amp module.......

I outdid myself this time with this version of my little power amp module, the sound is immaculately accurate and precise. Nothing seems to be left out of the music program, even the most subtitle background percussion sounds are heard in the ‘sound stage’ presence.

More on this amp can be found HERE.....
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Old 1st March 2013, 04:13 PM   #2849
tvi is offline tvi  Australia
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Quote:
Originally Posted by Duco View Post
One of my amplifiers. I think the look really nice and sound wonderful. Must admit, I haven't build them myself. If someone recognizes the topology please tell
A bit hard to tell but looks like a copy/variation on this
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Old 2nd March 2013, 01:27 PM   #2850
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Default JLH class A

This is my JLH build. Running on 32VDC single rail. Chassis made from scrap 4mm aluminum.
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