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Old 5th October 2012, 06:32 PM   #1
alibear is offline alibear  United Kingdom
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Default Regulators from Jims Audio.

Hi all, I want to use a shunt regulator for the input and VAS of a class A amplifier, with an output that can be adjusted between 30V and 35V. Has anyone any views on two regulators from Jims Audio, one is a Kubota type and one termed "class A shunt regulator". They both have variable posative and negative outputs in the voltage range I require, with ample current.
Buying a kit would be an easier solution for me than trying to make my own PCB.
Thanks for your help
Alan
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Old 5th October 2012, 09:32 PM   #2
CZ101 is offline CZ101  United States
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I have a similar question about this shunt regulator PCB on ebay. It ships from Indonesia and is described as "overstock Shunt Regulator PCB design by Mr. Salas". Any comments would be really helpful...
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Old 6th October 2012, 01:56 AM   #3
syklab is offline syklab  Hong Kong
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It doesn't look anything like the pcb I bought from Salas at all.
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Old 6th October 2012, 10:51 AM   #4
Ryssen is offline Ryssen  Sweden
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It might work after all.
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Regards ke
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Old 6th October 2012, 11:44 AM   #5
alibear is offline alibear  United Kingdom
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I was interested in this one Low impedance 500mA class A shunt regulator kit ! | eBay
Alan
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Old 6th October 2012, 11:46 AM   #6
alibear is offline alibear  United Kingdom
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And this one Kubota low noise regulator full blown version kit !! | eBay
Thanks
Alan
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Old 6th October 2012, 12:31 PM   #7
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Quote:
Originally Posted by alibear View Post
I bought two of those kits and they work ok. I didn't do extensive testing so I don't know much else.
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Old 7th October 2012, 07:21 PM   #8
alibear is offline alibear  United Kingdom
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Hi, I cannot find a circuit for the Kubota regulator, I presume it's a shunt type regulator, but I don't know for sure. Has anyone any details please? Here is a diagram of the second regulator I am interested in ( the class A shunt regulator ) does it look reasonable?
thanks for your help.
Alan
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File Type: jpg shunt2.jpg (50.2 KB, 852 views)
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Old 7th October 2012, 08:25 PM   #9
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Default Kubota Regulator

http://www.diyaudio.com/forums/attac...botaregckt.gif
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Old 7th October 2012, 09:38 PM   #10
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Quote:
Originally Posted by alibear View Post
Hi, I cannot find a circuit for the Kubota regulator, I presume it's a shunt type regulator, but I don't know for sure. Has anyone any details please? Here is a diagram of the second regulator I am interested in ( the class A shunt regulator ) does it look reasonable?
thanks for your help.
Alan
I don't believe that is a shunt regulator. It looks like a regular series regulator to me.
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