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Old 2nd January 2013, 10:41 PM   #11
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Join Date: Apr 2012
Quote:
Originally Posted by tagheuer View Post
Thanks for the info. But I'm just a noob who doesn't really know how to modify circuit.

Basically what I'm trying to do is to build a shunt regulator power supply based on pcb from Jims Audio.

All FET low-noise super shunt regulator PCB Borbely ! | eBay
Hello.
Happy New Year.
I've also built the shunt JIMS AUDIO.
Let me know if function well.
Have you encountered difficulties.
What are the components to be selected.
Where to be careful.
I have some high-frequency oscillations in the negative channel.
The positive seems to be fine.
is the first and I do not have experience.
Thank you.
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Old 3rd January 2013, 11:51 AM   #12
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Maybe try changing C18 to larger value?
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Old 6th February 2013, 07:16 PM   #13
kamis is offline kamis  Serbia
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Location: Obrenovac,Serbia
Quote:
Originally Posted by ticknpop;31484I61
I have some- What are you building? Borbely power amp ?
You can build Borbely line amp with only 170/74 and 216/79 outputs.
I only want a Tag Heuer Carrera for them
Which is Idss range of the input J-Fets in Borbely power amps? I have a few 7ma K389/J109.
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Old 6th February 2013, 07:54 PM   #14
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Borbely used V grade for inputs, but current through the devise is 2 ma each side so most BL devices should work. What model of Borbely Power amp will you build?
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Old 6th February 2013, 08:01 PM   #15
kamis is offline kamis  Serbia
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Quote:
Originally Posted by ticknpop View Post
Borbely used V grade for inputs, but current through the devise is 2 ma each side so most BL devices should work. What model of Borbely Power amp will you build?
I wish to build Ribbon power amp. I have already built output stages with matched MOF fets.
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