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Old 23rd January 2013, 08:21 AM   #8211
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Smile Linear Lab PSU 0 - 150V/4A

LAB PSU EA - PS3150-04B - Linear, DC, 1 Kanal 150V/4A, 600W


I Found this one [HiQ Regulation]to be very handy to have at the bench,
two of them for dual supply but the price is the only negative side effect . . .

Regards
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Old 23rd January 2013, 08:34 AM   #8212
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I've been picking up grunty linear power supplies for my bench work. My latest find was an Instek dual channel supply (2 X 30V, 6A) for ~$200, a bargain. It'll come in handy breaking in Class A monstrosities. My favorite bench supplies come from Topward. I have a couple of their dual 60V/3A models that come in quite useful. My only problem with them is that they use a relay to switch transformer taps in order to limit dissipation on the pass devices - still, not usually a problem.
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Old 23rd January 2013, 08:54 AM   #8213
Salas is offline Salas  Greece
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Quote:
Originally Posted by Smiley 09 View Post
LAB PSU EA - PS3150-04B - Linear, DC, 1 Kanal 150V/4A, 600W


I Found this one [HiQ Regulation]to be very handy to have at the bench,
two of them for dual supply but the price is the only negative side effect . . .

Regards
Higher voltage bench beasts are not popular since general electronics are running on low rails these days. If rather special purpose test gear is needed then it comes at a premium. For circuits like in the MPP thread though, the classic 30V dual isolated output form factor lab PSUs come in many brands and models, and are very versatile. Here is one of the better design and build quality low ripple examples with remote sensing and on the fly on/off output switches. Such should be around the 400 Euro price point VAT inc.
EL-R Series Precision Bench Power Supplies from TTi - laboratory power supply
Click the image to open in full size.
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Old 23rd January 2013, 08:58 AM   #8214
Salas is offline Salas  Greece
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Quote:
Originally Posted by wrenchone View Post
I've been picking up grunty linear power supplies for my bench work. My latest find was an Instek dual channel supply (2 X 30V, 6A) for ~$200, a bargain.
Good find. Instek are pricey when brand new. Was it in a surplus store or on ebay?
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Old 23rd January 2013, 09:28 AM   #8215
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Quote:
Originally Posted by Salas View Post
Here is one of the better design and build quality low ripple examples with remote sensing and on the fly on/off output switches. Such should be around the 400 Euro price point VAT inc.
Great Finding,thnx for the info, will begin to save some E... for it.
Do they have also 2x60V - 4A version this would be best of two worlds also for some heavier works eg. (PAmp)

THNX & Regards
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Old 23rd January 2013, 09:44 AM   #8216
Salas is offline Salas  Greece
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They go up to 56V 1.1A with small singles you can put side by side.
EL561R - AIM-TTI INSTRUMENTS - PSU, 56V 1A | Farnell United Kingdom
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Old 23rd January 2013, 10:02 AM   #8217
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A good surplus source for the TTI power supplys (earlier models; factory closeouts) is here:

Test Equipment For Sale

He also sells these on eBay (user name "snibbo"). That's how I found this seller.
I got such a supply from him last spring delivered directly from the manufacturer. You can see it in action here:

GB NP matched Toshiba 2SK1530/2SK201 for F5X
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Old 23rd January 2013, 08:11 PM   #8218
FdW is offline FdW  Netherlands
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Any one? Opamp challenge did you see this or this andre van duin - YouTube
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Old 24th January 2013, 05:43 AM   #8219
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I found the Instek beast on Fleabay.
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Old 24th January 2013, 04:23 PM   #8220
FdW is offline FdW  Netherlands
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Quote:
Originally Posted by Joachim Gerhard View Post
And if you are out of money Part Ninja v1 free PCB build | Dangerous Prototypes

Found it here EEVblog #413 - Mailbag - YouTube
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