crisotop

crisotop's finished projects
« on: October 11, 2008, 06:53:29 AM »
My thread of successful builds in chronological order - enjoy!

G-SSL



The beginners favorite - what else can I say? Built with the additional Steffen Super Sidechain Board


Two Dual 1176 Compressors




Both are built with mnats Boards and have Lundahls on the output, the blue unit has IC input, the black one has switchable IC + OEP trafo input (many thanks to Stephen for the help on that!). I haven't made pictures of the finished insides yet, also the knobs on the blue unit are just temporarily and will be replace by the new owner. FETs are matched and stereo linking works like a charm, only the wiring on the non Rev-D boards is quite a pain, I can't see myself building an 1081!


Dual Analog Opto




The first build i felt the "analoge" right away - this unit just sounds like I would imagine a tapemachin to sound. Smoothed out highs and soft saturation - just beatiful! Have to try the Kubi "double vactrol" mod and maybe a 600:10k on the input for more gain. At the moment this compressor behaves like a nice old marshall amp - everything on 10 and your good to go. I used a 3pdt switch for modding the slopes, "soft" is a blue led, "hard" a red and middle position is original analog mode. Only the VUs are a bit off, need to have a look at that at some point.

Edit: Now with Kubi 'double vactrol + sidechain cap mod', doesn't really need the 600:10k input trafo anymore, but there's a pair on it's way already ;)


Two LA-2a's




These two were originally finished last spring. One unit was built for a friend again, I just purchased Volkers dual board since I miss the second one already ;) Sowter Iron, other than that nothing fancy in there. Sounds absoutely fantastic on vocals!


Neve 33609





My first piece of "Neve" gear, sits on my low-end (i.e. drums + bass) buss since it was finished. Carnhills trafos, Elma for the compression threshold - easy build, but again VU tracking is not quite right, after 6-8 dB it starts to drift. (btw - thae rhode&schwarz analyser belongs to the university where I work - no need to panic :D)


Two G-Pultecs EQP1s




Edcor XS1100 on in and output using Tat's adapter boards, Max (ioaudio) inductor. All filter caps are wimas (sometimes in parallel to get the needed values), fairly easy to fit them in smaller/bigger holes if you're having a hard time sourcing the needed spacings. Beautiful low-end, especially the boost is huge, same counts for the top.


Neumann V475 Summing Amp




Of course inspired by volkers (thanks for the card & help!) great looking box I decided to build on by myself. 24 channels in the smallest 1U box I had flying around :) 18 stereo inputs + 6 Mono suit my mixing setup perfectly, I also switched to a bantam patchbay and redid all my cabling just for this box. Very clean sounding, absolutely no noise, slight bass roll off...


ReAmp Box




Andreas Hau (i think I've seen him somewhere here in this forum ;)) wrote an article about a cheap (~ €30) reamping box using a tiny neutrik transformer in the german 'sound and recording magazine' a couple of months ago. Since I used a passive DI in reverse for that purpose and wanted to have more control I built one. The impedance control is awesome, my singlecoil Tele sounds like a Paula with lots of balls when I crank up the control!


Sontec Stereo EQ




Surgical stereo 'mastering' eq - very easy build. Configured mine for +/-12dB as printed on the front panel.


API 312 Stereo Micpre




A thousand thanks to br, jensenman and hansherman for finally getting those 312 boards + 2520 opamps out ;) Another cheers to Gil for his demo rack-case, which made building a breeze. Very straightforward to build and tons (!!) of gain from this classic piece of gear.

Ibanez FL-301 Stompbox Flanger



Got the pcb from tonepad, built two effectpedals, one as a gift for a friend and one for myself. Not as Swooshy as an Electric Mistress, but very versatile, from chorus, to rotary cabinet, to deep jet sounds a wide variety of sounds is possible.


G7 Stereo Pair






A pair of G7 mics with dale capsule + thiersch capsule mount. Very sweet sounding, compared to an C414 it is much clearer in the bottom (less boomy and rumbly) and the high end isn't as hyped, but still present and detailed. Also very quiet for a tube mic.


Trident S80 Racking




Finally my two good ol' british channels are working! I repaired the completely ripped-apart modules about a year ago, but it took ages to finalise the enclosure (many thanks to wood-Michael and aluminium-Frank!). Added a nice PSU with switchable Phantom, Gain-Pot instead of the channel fader (the "lunchbox" is already big enough ;). Mic/Line IP + Transformer balanced OP + a nice broad and musical EQ in the middle is all one could wish for.


V1170 + 1176LN Channelstrip




Channelstrip with two similarly named untis: BFE V1170 Mic/Line Preamp (huge Haufe/Pikatron trafos, although filled with a lot of ICs) + a trusty 1176 (mnats Rev J) form a perfect pair for tracking purposes. Relais-bypass for the compressor and igor DI/Phantom/Phase/Pad board.


Turbo SSL




My second SSL, this on a straightforward "original" clone, Sifam PPM VU with led illumination, dbx vcas, permanently in turbo mode, hardware bypass + non-onboard PSU. Haven't had time to compare the sound to my first ssl build, but it works perfectly.


Stereo W295b Racking




Rack job of a Siemens W295b EQ Pair. Added relay bypass + active leds, very simple but sweet sounding three band eq.


D-La2a




Volkers infamous d-la2a design (building was a breeze + works perfectly after 1st power up). Used "original" Sowter clones (1009 + 1010) and stepped Elma switches for easier recall. (25k pot + 75k resistor is a must on these things and brings the gain in a useful range). Matched tubes, matched T4 cells = close to perfect stereo tracking. This unit is also quieter and has less hum than my mono 3RU La2a build (what a waste of rackspace). It's tough to fit the tubes in a 2U case, but it can be done.


2-1176revD




UTC P12 input (octal o12) / ed anderson output. 20dB (1dB Steps) switched Elma T-Pad, switched Elma output, attack/release are pots, but will be replaced by switches once I find a cheaper alternative to the elmas :)


GDIY511x Rack







Sifam VU Meters




nice VU Meters, JLM Buffer Kit, that's it


AST (Neumann) W1390 Stereo Fader Racking




Excellent active faders, for my non-meter bridge Studer B67 taperecorder


TG12413 Zener Limiter




Festers boards, diodes very closely matched (excellent stereo tracking, even with the original hold control). Switchable IC / Trafo balancing with Edcor 10k:10k on the input for a very mellow "tapey" sound. Absolutely in love with this thing - so versatile!


Telefunken V672 Stereo Racking




Volker PSU, JLM GoBetween, two switchable input impedances, stepped gain control, sweet and still affordable preamps with character, especially with low-impedance inputs.


Siemens V72 Stereo Racking




Olaf/Volker "Esoteric" Phantom PSU + SlowStart boards. switched T-Pad attenuator, JLM GoBetween - 34dB of tube heaven :)


EQN 51X Module




A pair of Peter's beautiful Neve 1084 EQ modules was my first 51X (500-) series build, no metalwork, no psu, no hassle :D -- GO 51X Audio!


NV73 51X Module





And a pair of David's pres to go with my eq's - make sure to have at least one, the in- or output linked to 0V/GND (not Case/Earth) on your 511 rack to prevent nasty oscillation.


Ribbon Booster & Impedance Converter



Two channel microphone toolboxes for my cheapo ribbons. Another build from Dr. Hau (with circuit ideas by PRR) out of the sound&recording magazine.


Ribbon Booster & Impedance Converter




A pair of Jensamps to fill up my 51X rack. Super-easy build (perfect for a rainy sunday afternoon) and very thick sounding pres, love them!



and a picture of my mixplace (only the diy micpres are missing ;)


Many many thanks the big contributors of this place for all the incredible work to make such great projects like those available for everyone!

happy DIY,
christoph
« Last Edit: November 06, 2012, 07:56:38 AM by crisotop »


jensenmann

Lots of finished Projects
« Reply #1 on: October 11, 2008, 07:54:37 AM »
:shock:  that´s quite a bunch of gear
 
 :thumb:  well done



I´m jaleous that you have a UPV at work
Jens
Quote from: PRR
The tubes of course don't care what frequency they distort

gyraf

Lots of finished Projects
« Reply #2 on: October 11, 2008, 08:17:56 AM »
:shock:
..note to self: don't let Harman run your company..

nickt

Lots of finished Projects
« Reply #3 on: October 11, 2008, 08:19:25 AM »
:shock:  :shock:  wow!

okgb

Lots of finished Projects
« Reply #4 on: October 11, 2008, 08:33:12 AM »
If that was a whole summer's work i'm going to kill myself right now
Very Productive , nice looking work

whatever your dayjob is you must be good at it ! Bravo on the nice peices
GKB Audio / Greg Boboski

ioaudio

Lots of finished Projects
« Reply #5 on: October 11, 2008, 08:50:41 AM »
wow  :shock:
-max

Ptownkid

Lots of finished Projects
« Reply #6 on: October 11, 2008, 09:00:10 AM »
good lord...

by the time spring hits though, I'll have a pile like that i think.

king-rb

Lots of finished Projects
« Reply #7 on: October 11, 2008, 09:22:18 AM »
wohaaa.. wow i like that red frontpannel of the daoc cool!

jarlehal

Lots of finished Projects
« Reply #8 on: October 11, 2008, 10:11:11 AM »
:shock: wooooow. Very nice builds - all of them. Think I'll have to start buying the Purusha cases. Metal work is killing me, and slows my projects down alot.

clintrubber

Lots of finished Projects
« Reply #9 on: October 11, 2008, 10:12:13 AM »
Very nice !  :thumb:

Spotting both a Technics and a re-amp... please confirm you use them for loud rock & don't tell us you use all those nice boxes to process dance-orientated stuff, right ?  :twisted:  :cool:

Just kidding...

Have a good weekend,

  Peter


Lots of finished Projects
« Reply #10 on: October 11, 2008, 10:21:38 AM »
Rohde & Schwarz UPV ???!!!

crisotop

Lots of finished Projects
« Reply #11 on: October 11, 2008, 10:22:50 AM »
thanks for all the kind words!

Quote
If that was a whole summer's work i'm going to kill myself right now


A lot of it was done in my two week holiday - I felt weird when I switched the soldering iron off and started to breath clean air again :D

Quote
by the time spring hits though, I'll have a pile like that i think.


Oh god this is so addictive - especially with so many great projects offered nearly every week!

Quote
Think I'll have to start buying the Purusha cases. Metal work is killing me, and slows my projects down alot.


I know that it's not as DIY as one could get, but if I would be drilling the frontpanels by myself it would look awful and take three times longer to finish a unit. The D-AOC case is from purusha as well, so kudos to him ;)
I will try frontpanel express for the pm670, but it's a lot of work and more expensive than a complete box from tat...

Quote
potting both a Technics and a re-amp... please confirm you use them for loud rock & don't tell us you use all those nice boxes to process dance-orientated stuff, right ?    


Hehe, I used to DJ ages ago, but still buy most records (95% rock :razz:) on vinyl, which is the reason for still owning two 1210s. And yes, all those boxes have to deal with smashed drums, overdriven guitars and roaring vocals :grin:

take care
christoph

[silent:arts]

Lots of finished Projects
« Reply #12 on: October 11, 2008, 10:58:41 AM »
WOW - this is an awesome amount of nice and clean builded units for a summer :shock:  :shock:  :shock:  :shock:  :shock:  :shock:

keep on rocking :green:

Igor

Lots of finished Projects
« Reply #13 on: October 11, 2008, 11:00:32 AM »
Excellent work! Happy to see these baby's!
Will take a shot of Lafroaig with pipe for them!
 :guinness:  :sam:  :thumb:  :thumb:  :thumb:
http://www.ij-audio.com
(new site hopefully will be up in July)

Samuel Groner

    Zürich, Switzerland
  • Posts: 2935
Lots of finished Projects
« Reply #14 on: October 11, 2008, 11:00:54 AM »
Impressive!

Quote
Rohde & Schwarz UPV?

Indeed a well-done clone--looks very close to the original. :green:

Samuel

radiance

Re: Lot's of finished Projects
« Reply #15 on: October 11, 2008, 11:34:29 AM »
Quote from: "crisotop"
I. (btw - thae rhode&schwarz analyser belongs to the university where I work - no need to panic :D)


Well, I did panic for a moment there  :shock:  

All is fine now. Very nice and clean builds BTW  :thumb:
"Knowing that you are dreaming, however, does not automatically guarantee full rationality.
Then again, being awake doesn't ensure good thinking, either." -  Lynne Levitan

uncle

Lots of finished Projects
« Reply #16 on: October 11, 2008, 12:03:16 PM »
Great work!! very clean!
thanx for beautiful pics
I´m jaleous!! :)

can we hear some audio samples?  :razz: That would be great

okgb

Lots of finished Projects
« Reply #17 on: October 11, 2008, 12:41:21 PM »
Yeah , yeah ptown , whenever i finish my 15 half done projects
my studio will be bigger than your studio ......................
but not crisotop's , Ha! and yeah the finishing always slows me down

you'll have to send that to the  D.I.Y. done thread where it will be in the
good company of a few other of our proud members [what was it called ?]
GKB Audio / Greg Boboski

EmRR

Lots of finished Projects
« Reply #18 on: October 11, 2008, 01:34:56 PM »
I love hitting a run like this; so rare.   Good work.
Best,

Doug Williams
Electromagnetic Radiation Recorders

"I think this can be better. Some kind of control that's intuitive, not complicated like a single knob" - Crusty

"Back when everything sounde

Lots of finished Projects
« Reply #19 on: October 11, 2008, 02:06:44 PM »
Thanks for sharing your builds, what a inspiration.

can you tell us a little about the use of the audio analyzer with the Neve 33609 ? looks interesting....


 

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