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Old 3rd February 2018, 06:24 PM   #21
Zen Mod is offline Zen Mod  Serbia
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Click the image to open in full size.



Did I said that they’re Gorgeously sounding ?


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Old 3rd February 2018, 08:28 PM   #22
Zen Mod is offline Zen Mod  Serbia
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Default implementing servo in your existing Aleph X

it's easy ;

just look at (re)attached schm , taken from LTSpice (open it in new tab) ;

you can use small veroboard , to accommodate parts bracketed and labeled as servo - two small T092 transistors (any decent NPN 1W will do the job)

you have to connect 5 wires & GND:

-Vcc+
-Vcc-
-sense from neg out
-sense from pos out
- servo out to sources node of input LTP
-GND

decrease slightly current through LTP CCS , to allow servo circ to compensate;

replace McMillan resistors with new ones, at least 10fold in value vs. present ones

rebias/reset entire thingie

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File Type: jpg servo circ.jpg (28.5 KB, 510 views)
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Old 3rd February 2018, 08:47 PM   #23
WBS is offline WBS  United States
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Ahem... I just want to say it looks like several resistors need to go on a weight loss program... They look kind of chubby.

Those resistor stand-offs are kind of cool!

All in all an AWESOME build. But that's to be expected from the Mighty ZM! I wish I could take it for a drive.
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Old 3rd February 2018, 10:20 PM   #24
mpmarino is offline mpmarino  United States
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Quote:
Originally Posted by WBS View Post
I wish I could take it for a drive.
Same here - nice unique design

Will they drive an F4 ??
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Old 3rd February 2018, 10:26 PM   #25
Zen Mod is offline Zen Mod  Serbia
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naah ......... buggers are too wimpy to drive F4s

choked with those fatty resistors



appropriate pic included (collected nasty habit from the States - damn filter coffee ......... and I was Real Man , drinking just strongest Turkish Coffee ) :

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Old 4th February 2018, 03:11 PM   #26
kasey197 is offline kasey197
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Wow Super fuglicious zen mod !!
+those ribbon cables really give these a neat build look.

I'm sure the proud owner of these babies is gonna absolutely love em!
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Old 4th February 2018, 06:03 PM   #27
WalterW is offline WalterW  Netherlands
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Wow, ZM is that one of these boxes with 8 heatsinks?

Is the plate where you mounted the IRFP outputs on, not too much brushed? Shouldn't it be smoother?
is the way you are mounting your Frontend boards, also the way passlabs does it? With the two alu bars?
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Old 4th February 2018, 06:14 PM   #28
Zen Mod is offline Zen Mod  Serbia
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yup , those ;

regarding quality of case , everything is top notch ....... so mounting of outputs is also no brainer

PL way of mounting - dunno , this way is logical to me , so why not
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Old 4th February 2018, 06:23 PM   #29
WBS is offline WBS  United States
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I thought any descriptor using the word fugly, fuglicious or variations thereof were copyrighted by ZM! I seem to remember having my soldering iron slapped for using it once...
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Old 4th February 2018, 06:47 PM   #30
Zen Mod is offline Zen Mod  Serbia
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so ....... I'm not deserving Fugly! ?

I was convinced that anything , and in any shape or form , made by Mighty ZM is no less than Fugly!



Though ....... Buddha is feeling best , sittin' in Ikebana style prototypes ......
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