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-   -   helder mk3 ta2024 (http://www.diyaudio.com/forums/class-d/174173-helder-mk3-ta2024.html)

pharoahra 24th September 2010 03:26 AM

helder mk3 ta2024
 
i really like my dayton dta-1 amplifier.so i finally decided to get a helder mk3 2024 board ordered today.does anyone have any experience with this particular version?this board can accept either ac,or dc input.which would i be better off doing just getting a transformer,or building an entire power supply?either way for starters i will probably just use a transformer.with consideration of the upgrade path if needed.

GJF 24th September 2010 04:57 PM

Took delivery of one of these last week and I'm currently using a switch mode 12v psu that normally powers my modified 41hz Amp32.
Doesn't sound as good as the 41hz amp and hope it will improve with burn-in.
If I had a 9v transformer I would use that instead with the on-board rectification and bulk cap of the Helder board.

Let us know how you find it soundwise when it arrives.

pharoahra 24th September 2010 06:41 PM

yeah i will post some pics,and thoughts about its sound.why did you say 9v transformer?wouldnt a 12v transformer be better?

pharoahra 24th September 2010 10:59 PM

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i got a chasis for it already.its an old blown up equalizer.its already gutted out so its ready to build.i am gonna sand down the face to remove the lettering and stuff.then im gonna refinish it glossy black.

GJF 24th September 2010 11:11 PM

With the onboard rectifier and bulk cap a 9v ac input will near as damn it give 12v dc.

pharoahra 24th September 2010 11:14 PM

oh right so would a 12v transformer be to much for it?

GJF 25th September 2010 09:31 AM

You would be over 16v with that and IIRC the TA2024 maximum is something like 13.8v.

pharoahra 25th September 2010 10:21 PM

ok then thanks for your help.i rounded up a power brick similar to the sure one at parts express.its a 12vdc 3.25a,also got some binding posts.some other odds and ends for it.so now im ready just waiting for the module to get here.:D

pharoahra 26th September 2010 01:44 AM

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teaser photo till i get it done

pharoahra 26th September 2010 11:23 PM

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here is my first spray after sanding the faceplate.im gonna wet sand it tomorrow,and do the second coat.then repete until im satisfied with the look.then i plan to do a few layers of clear to give it that deep shine.


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