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Old 28th May 2009, 10:52 AM   #281
col is offline col  Australia
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Quote:
Just bought 41hz toroid kits. Thanks. Did you noticed a real improvement in sound?
Yes, a definite improvement in sound, especially when playing at high volume levels

Be careful with soldering/placement, they MUST NOT touch anything metallic, they arc out. I used TO-220 adhesive sil pads to insulate the bottom from the diodes and also to hold them in place. I might add some heat resistant adhesive later.

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Old 28th May 2009, 10:55 AM   #282
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Ok. Do they must sit on the pcb or can I leave the legs a bit longer? I'm also playing with another pcb and it has very little room for bigger inductors.
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Old 28th May 2009, 01:49 PM   #283
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Default Re: Power supply

Quote:
Originally posted by Calamaro
I've replaced filter capacitor.
Removed diode and replaced inductor with a ferrite bead to gain more room for bigger (and better) Nichicon, bypassed with 100nF film cap.

Calamaro,


I am not sure how to solder 100nF film cap.


Thank you.
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Old 28th May 2009, 02:09 PM   #284
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panda, just bypass the electrolitic with the 100nF film cap: solder its legs on electrolitic legs. The film cap (100nF) is non polarized so you don't have to pay attention to + and - legs.
If you prefer you can solder the little film cap under the board
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Old 28th May 2009, 02:30 PM   #285
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Quote:
Originally posted by Calamaro
panda, just bypass the electrolitic with the 100nF film cap: solder its legs on electrolitic legs. The film cap (100nF) is non polarized so you don't have to pay attention to + and - legs.
If you prefer you can solder the little film cap under the board

Calamaro,


I understand now. Join in parallel.


Thank you.
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Old 29th May 2009, 04:27 AM   #286
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I found what seems to be a great power supply for the Lepai amp I bought on ebay. It's 13.5V/2.66A. I've been using it for a few weeks now. I bought it at advpower.com. The only catch is that they sell in bulk. Luckily, the minimum order was 2 which means I have a spare. I'm so pleased with my Lepai that I'm thinking about picking up another if I can find someone who likes DIYing enough that they'd help me improve it (I'm legally blind, so there's no way I'd be able to do that myself).
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Old 29th May 2009, 06:55 AM   #287
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Quote:
Originally posted by goodgnus
I found what seems to be a great power supply for the Lepai amp I bought on ebay. It's 13.5V/2.66A. I've been using it for a few weeks now. I bought it at advpower.com. The only catch is that they sell in bulk. Luckily, the minimum order was 2 which means I have a spare. I'm so pleased with my Lepai that I'm thinking about picking up another if I can find someone who likes DIYing enough that they'd help me improve it (I'm legally blind, so there's no way I'd be able to do that myself).
Goodgnus,

Is it big imprvovment in sound quality when compare with 12V 3A? If yes, I would like to buy an 14V 3A. The maximun voltage for TA2020 is 14.5V.
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Old 29th May 2009, 07:05 AM   #288
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I can't say. I bought my amp without a power supply, so I never had the chance to hear it with the standard 12V. I decided to go with a 13.5V because I didn't want to risk even coming close to the upper limit. Like I said, I'm really happy with it.
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Old 29th May 2009, 07:24 AM   #289
magixz is offline magixz  Singapore
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Quote:
Originally posted by goodgnus
I found what seems to be a great power supply for the Lepai amp I bought on ebay. It's 13.5V/2.66A. I've been using it for a few weeks now. I bought it at advpower.com. The only catch is that they sell in bulk. Luckily, the minimum order was 2 which means I have a spare. I'm so pleased with my Lepai that I'm thinking about picking up another if I can find someone who likes DIYing enough that they'd help me improve it (I'm legally blind, so there's no way I'd be able to do that myself).

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Old 29th May 2009, 07:27 AM   #290
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OH! You're right! My apologies. They've apparently deleted that page. Still, if you're looking for a cheap power supply for a Lepai, they've got 'em.
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