My Real Mctube Finished!!

[mathflan]

Hi,

I recently finished the real mctube from Fred Nachbaur (RIP)

http://www.dogstar.dantimax.dk/tubestuf/mctube.htm

I used Tonepad PCB layout.

A big thank  to FP and paul marossy for help.


PICTURES :

















I use european Version, I use Two transformer : 220 Volt -> 12 volt ( 5 VA), 400ma on secondary, and 24 Volt -> 220 Volt, 3.2 VA, 300 ma on secondary.

mods that I have done:

I added a marshall's tonestack that I placed instead of R8.
I omitted R9 resistor.
I used 500 K log for GAIN and 1 Mega Log for VOLUME.
I added a Clean swith that disconnect C7.


SAMPLES :

I record somes samples with my Epiphone guitare, passive pickup , to a Mia midi Card throught a yahama Mixer.
Don't pay attention  to the muddy of the sound.
the mctube has a huge Dynamics and great High response, To Listen really the Mctube response, I have to record samples with a AMP and SM57, that's would be better 

http://sounddiy.free.fr/images/Mctube/mctube-(channel%20overdrive,%20GAin%20from%2030%25%20to%20100%25,ON-OFF).mp3

http://sounddiy.free.fr/images/Mctube/mctube-(channel%20overdrive%20to%20Channel%20clean,%20Eq%20on-off,%20EQ%20pots%20Ajusts,%20ON-OFF).mp3



I have to Build another mctube because this one is for my brother , and I want To have my OWN!

[Paul Marossy]

Looks pretty cool! 

[mathflan]

thanks,

On this one I tried another Design conception..

I painted all the box and I Print my design on a transparent Stick sheet, that I put On the Box.
After that I spray some varnish, it's done!

[scaesic]

i noticed you used a jj kt88 tube,
how much did it cost you and where did you get it?
i need a matched pair, but im skint

[mathflan]

I Used A JJ Tesla 12ax7, ECC83 and NOT KT88
I bought It from tube-town

You can find KT88 On tube town here :http://www.tubetown.de/ttstore/product_info.php/info/p26_JJ-KT88---6550.html

[Bernardduur]

KT88 are much, much, much bigger than that
It looks really great BTW

[Alex C]

Both the outside and inside look great.  I'm a big fan of "guts" shots.  I like the idea of a separate housing for the power supply too.  Very nice work.

-Alex

[mathflan]

Thanks!

YEs I USe another Boxe For the Power supply to Not have Noise problem.

YOu will laught On the Beginning, I tried to put ALL,power supply and Audio circuit in Only one Boxe :




With that concept, I had a lot of Noise due to the proximity of the transformers.
I know I was optimisted...

[dv8]

Awesome looking pedal.  I like the 2 box idea.  I need to build this one, so many projects, so little time.

-brian

[chuckschuldiner]

Can i see your marshall's tonestack Schematic that placed instead of R8( 1M ) please.

Thank you. 

[343 Salty Beans]

tube pedals, by rule of thumb, ALWAYS look better when the tubes are prominently displayed outside the enclosure. Nice going.

[nightingale]

sick!