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Old 11th April 2013, 11:27 AM   #7121
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Quote:
Originally Posted by nbivol View Post
tonyptony,thanks for the good words
the case was taken from here Audio Catalog
AL-314B Full Aluminum chassis for Pre-amp or small power amp - Black color
Thanks for the links. What kind of buttons are those on the top of the case, and how do they stay in place? Do they just rest on the black buttons on the PCBs?
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Old 11th April 2013, 12:18 PM   #7122
nbivol is offline nbivol  Turkey
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here you got :
10pc Aluminium Knob KNB 068 Interlock Push Button Switch ?8X14 5mm Color Silver | eBay
there you can find also black ones
sticked them with double sided adhesive foam tape to the black buttons on the PCBs
there are also some nice boxes one of them I've used for power supply unit
here you got link for real bargain cheap transformers that i've bouth 2 for 50$ (make offer) shipped free!!!
Dual 12V 50W AC Power Supply Transformer AC220V Input AC12V 0 AC12V 50W Output | eBay

all the best
Nicu
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Old 11th April 2013, 02:40 PM   #7123
BMW850 is offline BMW850  Netherlands
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Hi all,

I had emailed Tibi today if he had sent the parts and stood there the postman, Tibi thanks
I soldered everything directly and now plays the Vicol Shiga.

First, a few weeks listening before I go to judge about the qualities.
So don’t ask now how this sounds …

Am now a video to upload and sorry about the poor quality.
https://www.youtube.com/watch?v=iTTyxom9tg4

Regards,
Rudy
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Last edited by BMW850; 11th April 2013 at 02:44 PM. Reason: Typo
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Old 11th April 2013, 05:21 PM   #7124
BMW850 is offline BMW850  Netherlands
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Only the CD door switch does not work on the display board , maybe the connector has no good contact.

Regards,
Rudy
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Old 11th April 2013, 07:29 PM   #7125
BMW850 is offline BMW850  Netherlands
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Also the CD door switch works now properly

Regards,
Rudy
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Old 12th April 2013, 05:41 PM   #7126
nbivol is offline nbivol  Turkey
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Quote:
Originally Posted by tonyptony View Post
nbivol, Can you post a couple more of pics of the innards?
Today I opened to connect the LED on the front panel and I was able to make some better pictures
Click the image to open in full size.

Click the image to open in full size.

Here you can see controller PCB separated from motors mech and standing on own standoffs ,just about 1mm below motors
Click the image to open in full size.

other side
Click the image to open in full size.
let's give to our pannel led some power (gray/orange cable)
Click the image to open in full size.

put on the cover pannel
Click the image to open in full size.
back view ,pretty sexy
Click the image to open in full size.
4 screws for join cover to bottom pannel (see corners)
Click the image to open in full size.
just before to put on sides plates and push buttons
Click the image to open in full size.
push buttons
Click the image to open in full size.
et voila, here is my Shiga
Click the image to open in full size.

Cheers,
Nicu
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Old 13th April 2013, 08:00 AM   #7127
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Very nice pics an great end results..

If you have to take it apart in future you might want to skip all the metal rings (to bring the print up to height) one ring and an extra nut underneath will suffice...or just a small block of wood..no big deal..just a thought

Great box to put it in...And good move to seperate the boards...you get a big reward soundwise.
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Last edited by Erik van Voorst; 13th April 2013 at 08:09 AM.
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Old 13th April 2013, 09:19 PM   #7128
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Very nice nbivol... very very nice....

My changes for today include elimination of the female RCA socket and direct soldering of the interconnect to the pcb. That was a biggy...

The small heatsinks on the Salas BiB were running pretty roasty, so I changed them for a nice big heatsink that just yawns at the temperatures developed on the fets...

I have also changed the Dale 100R-300R L pad on the output with two resistors I made out of 42AWG res wire (the body is wenge and insulation and vibration damping is natural bee's wax). I was surprised to discover that they perform slightly better than the Dales... Even with such a fast and crude construction with no attention to inductance or capacitance whatsoever... Definitely worth further exploring...

I also changed the CAT5 twisted pair wire I used as interconnect with a 100R twin coaxial wire featuring nordost dual microfilament technology. I don t know if I like the change though...

Here is a photo of what it looks like...

Click the image to open in full size.

You can see the tight layout around the 7808. Now that I got the bee's wax i m also tempted to try the electrolytic mod... We ll see... Some times I am even considering molding everything in wax

One thing I will start doing in a few days is replace all the wiring with proper good quality wire eliminating the white connectors.
But I have to start routing the final chassis first and decide the final layout before I finalize the cabling...
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Old 15th April 2013, 12:12 AM   #7129
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Just a note. For anyone working on a wood enclosure who needs to use a wood filler to fix any problems, I highly recommend the Famowood brand of wood filler. I used this particular version

Amazon.com: Famowood Water-Based 3.25-Ounce Tube Natural Adhesive: Arts, Crafts & Sewing

It is much better than the Minwax, DAP, or Elmer's equivalents (I tried all of these). All of those products IME take stain very poorly, creating a very bad match with the natural wood after the stain is applied. The Famowood takes stain beautifully, creating a very close match to the stain on the natural wood. It is also an excellent, easy to work with filler. Applies easily, dries quickly, and can be easily sanded and shaped.

I have no relationship to the company.
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Old 17th April 2013, 10:44 AM   #7130
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Guys I was just reading about the output attenuator and playing around with calculators.
Has anyone tried a T-pad instead of a Pi-pad?

The resistor values for the T-pad with 50R input and 75R output are significantly smaller (23.898R in, 52.266R out and 32.836 shunt), so they should behave better because of the shorter resistance wire and should be cheaper as well. Not to mention that we have less resistance in series with the signal. I think it s worth exploring...

Oh and Dale carries these values in RN55 and RN60 series
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