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Old 28th July 2006, 02:56 AM   #1
dviswa is offline dviswa  United States
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Join Date: Oct 2004
Default Pwer supply for ZV9


I was considering using this supply to drive a pair of ZV9 amps. Is this a good way to go? What do you all think of it. It costs just a little more than 2 toroidal transformers from

The specs are good. One thing that bothers me is that it has a fan. Don't know how noisy it might be. Another concern is, I do not know how many thousand micro farads of capacitors I can use on the supply before the supply refuses to come on.

Dual adjustable outputs: 0-50V and 0-5A
Line regulation: CV <= 0.01% + 2 mV, CC <= 0.2% + 2 mA
Load Regulation: CV <= 0.01% + 3mV, CC <= 0.2% + 3 mA
Ripple noise: CV <= 0.5 mV RMS, CC <= 3 mA RMS

I know, I should be building one, but I am cheating

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Old 30th July 2006, 04:29 AM   #2
dviswa is offline dviswa  United States
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Join Date: Oct 2004
Hi everybody,

64 views and still no response?

Obviously there are not too many people who have built a ZEN, much less use a bench supply and nobody used a Mastech?

Let me ask this slightly differently, anybody used a Mastech supply for any purpose, if so what do you think of it? Better still have you used it on an Amp?

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Old 30th July 2006, 04:30 PM   #3
steenoe is offline steenoe  Denmark
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64 views and still no response?
Dinesh, here is one response: I would never use a thing like that.
A simple supply consisting of "trafo-rectifier-smoothing caps" is perfectly suited to drive a poweramp. Its very fast and delivers the needed current on demand.
That Lab supply might be good enough for testing purposes though

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Old 6th August 2006, 03:05 AM   #4
dviswa is offline dviswa  United States
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Join Date: Oct 2004
Wow, I had missed this reply. Dropped the idea, Thanks Steenoe.
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