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Hifisonix kx-Amplifier
Hifisonix kx-Amplifier
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Old 2nd December 2019, 03:08 PM   #201
Bonsai is offline Bonsai  Europe
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In bianco's picture, the LHS board is the ripple eater and the RHS board is the basic PSU board that comes with the kx-Amp board set (and the sx-Amp as well).

There are no ripple eater components on the actual kx-Amplifier module PCB's - its just the amplifier part.

If you want the ripple eater, you need to buy the PCB separately ($11.99 IIRC).

The ripple eater was designed after the kx-Amp and is designed to be used with any class A amp up to about 25-30Watts peak. please see the write up here for further info

Simple Ripple Eater PSU for the sx and kx-Amplifiers

(please note: I make no financial gain from any of these boards - I supply the PCB layout Gerbers to Jim's Audio and they do the rest. I just consider it a service to the DIY audio community from my side)

Last edited by Bonsai; 2nd December 2019 at 03:13 PM.
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Old 2nd December 2019, 03:10 PM   #202
polsol is offline polsol  South Africa
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Copied from Jim's - but the pictures might be wrongly taken ..
Attached Images
File Type: jpg As supplied with kx.JPG (80.8 KB, 91 views)
File Type: jpg Ripple Eater Board.JPG (221.1 KB, 94 views)
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Old 2nd December 2019, 03:13 PM   #203
polsol is offline polsol  South Africa
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Quote:
Originally Posted by Bonsai View Post
In bianco's picture, the LHS board is the ripple eater and the RHS board is the basic PSU board that comes with the kx-Amp board set (and the sx-Amp as well).
Seems the pictures on Jims are wrong - as I had suggested they could be - unless I'm missing something.

BTW, Hovering over the two pics (above) will confirm which is which picture.
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Old 2nd December 2019, 03:17 PM   #204
Marra is offline Marra  United Kingdom
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Hifisonix kx-Amplifier
Bonsai are components for the ripple eater on the kx boards?
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Old 2nd December 2019, 03:33 PM   #205
Bonsai is offline Bonsai  Europe
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Marra,

no. The kx-Amp is supplied with the very basic PSU with just the filter caps, rectifiers and Zobel.

If you want a ripple eater PSU, you should order that separately from Jim's Audio (link on the Ripple Eater page on my website)
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Old 2nd December 2019, 03:35 PM   #206
Bonsai is offline Bonsai  Europe
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Looks like the pics from Jim's Audio are the same just that one image is rotated by 90 degrees - this is the Ripple Eater board
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Old 2nd December 2019, 03:38 PM   #207
Marra is offline Marra  United Kingdom
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Hifisonix kx-Amplifier
Thank you I had confused myself after reading about the ripple eater.

I am very much enjoying my music through the kx. Thank you.
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Old 2nd December 2019, 05:10 PM   #208
Bonsai is offline Bonsai  Europe
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That's fantastic! Glad you like it.
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Old 2nd December 2019, 09:33 PM   #209
princetemi is offline princetemi  Poland
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I will print out tomorrow ripple eater and post details. Heh... yesterday I've put one 220ohm in trafos secondary before bridge, so previous measuring was bad.

Right now on my dummy load (5w parallel 330ohm resistors in water) i have on terminals:
Vneg-0 growing rapidly 75VAC (yes, AC), 35VDC
Vplus-0 stable 54VAC and 24.5VDC.
I promise to put tomorrow detailed measurement.
Maybe i should replace all transistors beforehand...
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Old 2nd December 2019, 10:54 PM   #210
princetemi is offline princetemi  Poland
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Im soo noob. I've soldered in two mje15033...
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