PSU for TA2020 mk3

[sled108]

I'm always Careful with it and keep an Eye on the Red Light, but TriPath states it has a Absolute Max of 16v, and an Operating Max of 14.6v...

[Grote_spuit]

@ Studiostevus: Here are 2 pictures of mine. On the photo the box still contains an original ta2024 board from SI but right now it contains the ta2020 board from Arjen. It was a bit tough to get it all in, since the box is rather small, but it worked out. The box is from Conrad.nl.
For some nice cases you can also check out Electronica Behuizingen

or Class-T special project cabinet - /piece for a (almost)ready made t-amp case.

Arjen's board really rocks btw, you'll love it I'm sure.

[vaughn]

Originally Posted by Grote_spuit

@ Studiostevus: Here are 2 pictures of mine. On the photo the box still contains an original ta2024 board from SI but right now it contains the ta2020 board from Arjen. It was a bit tough to get it all in, since the box is rather small, but it worked out. The box is from Conrad.nl.
For some nice cases you can also check out Electronica Behuizingen

or Class-T special project cabinet - /piece for a (almost)ready made t-amp case.

Arjen's board really rocks btw, you'll love it I'm sure.

Yes it does, I have been using one with my Klipsch Forte's and powering it alternately from a smps or a battery. It sounds terrific with either but there is something special happening with the battery power

[studiostevus]

Those are the modushop.biz Italian casings... just without the transportation cost from Italy (at least if you're in The Netherlands). Good to know, bookmarked.

I got a hammond Black Eurocard casing eventually. Only problem is that it only opens on both ends of the casing, not on the top. So it will be a bit of a struggle to get it all in. For now I'm playing out of a cardboard box

Display Electronics - Hammond 431621 - Hammond aluminium profielbehuizing zwart, 165 x 105 x 60mm

[ticklerton]

I'm getting one of Arjen Helder's TA2020 MkIII boards and am wondering whether it's possible to repurpose the 12v power supply from an old yamaha cd-writer (CRW2100). Can I just connect the output from the psu to the TA2020 board? I'm a newbie so would like some advice before I do something foolish (I don't know what the current output of the psu is and i'm not clear whether it will overload the board and fry it!)

Thanks (first post so be gentle),

Dan

[mfong]

ticklerton,
it'll likely work, though the specs for the power supply should be printed on the unit. Just be careful to connect the wires correctly (some cd rom power supplies are 12 volt and 5 volt). I use discarded laptop power supplies and a printer supply for my tripath amps and I've tried a supply for an external IDE hard drive and that worked fine.

Overvoltage might fry the board (I did it a couple times). Overamperage usually isn't an issue

[ticklerton]

mfong,

Thanks for quick response and advice. Yes, power supply is 12 volt and 5 volt. As both 12 and 5 volt wire sets are enclosed in a run of cable I can't tell which red and black wires at the pcb end are for which rail. (There's also a fan which I'd like to disable.) Can I just leave that end alone, cut the connector that previously went into the CDRW drive and use the wires I need (ignoring all the ones I don't) or will I need to chase back the cable and establish which pins are 12V and G?

TIA, Dan

[mfong]

the ground is probably black. Easiest way to tell which is 5 and which is 12 would be to use a volt meter.