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5V PSU from eBay

Printed From: Graham Slee Hifi System Components
Category: And the rest
Forum Name: Power Sources
Forum Description: Where the power comes from has always been a hot topic - even more so now with new World legislation
URL: https://www.hifisystemcomponents.com/forum/forum_posts.asp?TID=4807
Printed Date: 24 Apr 2024 at 11:40am
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Topic: 5V PSU from eBay
Posted By: mhamilton
Subject: 5V PSU from eBay
Date Posted: 10 Oct 2019 at 9:59pm
Well while waiting for the kit to come along, I picked up this unit off ebay to power my Touch unit. 
Apparently its a chinese clone of a German design.  Uses op-amp circuit for voltage control.
Darlington pair output device.  Lots of good quality Panasonic gold capacitors and some Wima.

Can't say I've heard the difference in the music yet, but I really wanted to minimize the number of switching power supplies in the system.

I can say that I don't hear any transformer hum from this encapsulated torroid. 

em.



Replies:
Posted By: Ernie
Date Posted: 11 Oct 2019 at 10:48pm
And there lies the real problem, no difference in sound. Just go on Google and find out how to make a 5v supply. It’ll supply 5v at 3 amps. Won’t make the slightest bit of difference to the sound that or it’ll degrade it.

Good engineering is far more than nailing some bits together following a circuit diagram. The copies and clones on eBay may have the components but they’ll always lack the engineering nounce to make the things actually work.

A case in point is the Enigma. It’ll be a transformer and a regulator circuit like every other power supply. It’s the engineering behind it that makes the difference.


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