Re-build Babo Zen (Papa's Zen5 w. jfet inputs) - diyAudio
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Old 29th April 2007, 07:18 AM   #1
Formerly "jh6you". R.I.P.
 
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Default Re-build Babo Zen (Papa's Zen5 w. jfet inputs)

I'm re-building Babo Zen,
into one block stereo.
This time with my diy PCB ^^~

Here is the first shot of PSU PCB.


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Old 29th April 2007, 07:23 AM   #2
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ya nutz!

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Old 29th April 2007, 08:37 AM   #3
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Almost, yes!

After etching, I applied lead-free solder all over the
copper tracks. As an unquality effect, the board
slightly bent due to the process of cooling-after-heating
(shrinking stress).


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Old 29th April 2007, 11:30 AM   #4
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Okay, here is the second shot of bottom view
where all components are soldered on.


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Old 29th April 2007, 11:48 AM   #5
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Here is the 3rd shot of top view.

C-L-C is changed to C-R-C.
Each C is of 22,000uF/35V.
Each R is of 0R5.

The last Cs are of 33,000uF/35V,
where the rail voltages are supplied.

The wake-up call caps are of 4,700uF below
the zenner-current-controling R of 680ohm.
The series zenners are of 9.1V+9.1V+4.3V.

Hmm. . . lack of time. . . Will continue after
10-day home leave. . .



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Old 29th April 2007, 01:28 PM   #6
Zen Mod is offline Zen Mod  Serbia
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Quote:
Originally posted by Babowana
Here is the 3rd shot of top view.

C-L-C is changed to C-R-C.
Each C is of 22,000uF/35V.
Each R is of 0R5.

The last Cs are of 33,000uF/35V,
where the rail voltages are supplied.

The wake-up call caps are of 4,700uF below
the zenner-current-controling R of 680ohm.
The series zenners are of 9.1V+9.1V+4.3V.

Hmm. . . lack of time. . . Will continue after
10-day home leave. . .




I wish you nice trip

let be with ya!
__________________
my Papa is smarter than your Nelson !
clean thread; Cook Book;PSM LS Cook Book;Baby DiyA ;Mighty ZM's Bloggg;Papatreasure;Papa... by Mighty ZM
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Old 29th April 2007, 02:35 PM   #7
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Quote:
Originally posted by Zen Mod


I wish you nice trip

Thanks, Zen Mood
Will be in mood.

See Ya!


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Old 30th April 2007, 12:04 AM   #8
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Nice PCB's!

Any changes planned for the jfet inputs?

JJ
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Old 30th April 2007, 05:32 AM   #9
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Quote:
Originally posted by jupiterjune


Any changes planned for the jfet inputs?

JJ

No planning yet.
Partly because all measurements look fine,
and mainly because the sound is superb.


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Old 1st May 2007, 01:21 AM   #10
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Trust your ears! If it sounds good, that is all that matters!

JJ
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