Guys,
After some weeks of prototyping I finally finished the basic version of the Tube overdrive I've been working on over the last 6 months (though not continuous)...
Some photo's:
Bottom of the PCB:
(http://www.exaudio.nl/meuk/tubeod1.jpg)
And the top:
(http://www.exaudio.nl/meuk/tubeod2.jpg)
Step 1, some tens of wire bridges:
(http://www.exaudio.nl/meuk/tubeod3.jpg)
All resistors mounted:
(http://www.exaudio.nl/meuk/tubeod4.jpg)
Capacitors, IC's and the TB relais:
(http://www.exaudio.nl/meuk/tubeod5.jpg)
And, after mounting the last components the first test. Almost worked at the first try. (Too much bass due to a too large capacitor):
(http://www.exaudio.nl/meuk/tubeod6.jpg)
Another one with the controls visible:
(http://www.exaudio.nl/meuk/tubeod7.jpg)
Does everything fit and can the case be closed":
(http://www.exaudio.nl/meuk/tubeod8.jpg)
Photo of the top PCB, which contains the control pots:
(http://www.exaudio.nl/meuk/tubeod9.jpg)
Everything mounted:
(http://www.exaudio.nl/meuk/tubeod10.jpg)
And, finally, the result so far:
(http://www.exaudio.nl/meuk/tubeod11.jpg)
What's next?
First testing it during band rehearsals. After that the graphics need to be finished.
I'm really impressed how you've managed to put all the boards in there!!! :shock:
Great work!!!
;lkj
Really nice job.
How does it sound?
Gilles
Thats a great job Dirk, well done ! any chance of a sound clip from it??
Keep up the great work,
Marty :D
Thanks guys :oops:
Quote from: tomboyI'm really impressed how you've managed to put all the boards in there!!! :shock:
Great work!!!
It't pretty tricky. In every stage of the PCB design caution needs to be taken to make certain that components aren't too high. That's also the reason the upper PCB doesn't sit under the whole front. It wouldn't fit with the jacks.
Quote from: Doug_HLooks nice! Is this a low-voltage circuit?
Doug
Yes it is. The whole circuit works on 9 volts which is internally stabilized from a 12 volts DC power supply. Only the heater voltage is the rough 12 volts.
Quote from: MartyMartThats a great job Dirk, well done ! any chance of a sound clip from it??
Keep up the great work,
Marty :D
I'll be trying to make a sound clip later this week.
The whole project initially was focussed on bulding a TK999 tubeking into a 1590BB case and adding internal supply stabilization. Since I tweaked the tone controls quite a lot the sound is a little more harsch with all controls at 12 o'çlock. Furthermore the whole thing works fine for heavy lead and crunchy rhythm tracks but I haven't found a decent metal setting so far.
Holy smokes - that looks great!
Jim
that thing looks GREAT!
are you going to punch holes for heat?
BEAUTIFUL!!!!! 8) 8) 8)
Excellent layout work!! :)
WoW. :shock:
Maybe I can get my Shaka Tube in a Hammond 1590BB after all...
Quote from: remmeltthat thing looks GREAT!
are you going to punch holes for heat?
It's planned. The ladyfriend is working on the cosmetics as we speak. At the other hand, since there is no high voltage the tube doesn't get so terribly hot that holes are realy necessary. The temperature of the tube is comparable to that of the tubes in a tube amp which is in stand by (and has been for a while). You won't burn your fingers on that.
Wow...that must have been a real labor of love. So much work put into it! Beautiful.
Quote from: Paul MarossyWoW. :shock:
Maybe I can get my Shaka Tube in a Hammond 1590BB after all...
Just saw your page. I'm convinced you can. :D That was really my "webbpage of the day" find.
Dirk,
Cool, glad that you like my webpage(s). 8)
I like. :)
Andrew
wow!
awesome!
ps: what's that "jamaican" resistor in the middle of pic#4 ?
Great work there. All the pics look real cool. I also find it incredible that you fit all that in a BB in such neat order.
Would you ever consider selling these once you're comfortable with it?
Hi Dirk Hendrik,
Nice work,looks great!
Are you the DH from gitaarnet?
Greetings,Ed
Quote from: muganawesome!
ps: what's that "jamaican" resistor in the middle of pic#4 ?
Just another brand than the others.
On selling,
I've been thinking about it. Right now the total component cost is some 75 dollars. This will decrease when buying components in larger quantities. Apart from that the total building time was some 6 hours of work. In order to make some money on these either the price will be pretty high or I need to decrease building time. That is possible when building multiple at the same time. As said, I've been thinking about it.
Quote from: EdJHi Dirk Hendrik,
Nice work,looks great!
Are you the DH from gitaarnet?
Greetings,Ed
Same guy :wink:
I've said it before that my fave distortion/OD is my Ibanez Tube King. Therefore, I want to try a tube pedal once I get the basics down. My fear was of the "high voltage" warnings that I'd fry myself - but you said yours is low voltage!?! So does that mean a yahoo like me could attempt a similar design without killing myself? It looks time consuming, but worth it!
Although ofcourse all at own risk, I'd respect you if you manage to kill yourself with 12 volts AC. That takes quite some effort :wink:
Very nice build, I have a tk999 that I remounted in another box. I found that my displeasure with the sound was mainly with the values of the tone caps. While I didnt really change out any values, I did hack into certain portions of the tone circuit and added some things to help get some variety. Also there was some noise issues with the stock circuit ,this was originating from the second op-amp[ I am calling the second op-amp as if you were looking at the bottom of the stock board and it is the top left. This is also where the in and out of the tone circuit starts and ends. I traced enough of the circuit to get a drawing of it. You may already know this but in the first 999 produced they had a mod. done to eliminate the hiss but there were patent infringments or something like that and they had to go back and rearrange things a little. I have heard both and the original sounds better with the noise mod. Seeing your build inspires me to go back into mine and try some different op-amps. They at least supplyed the revisions of this pedal with sockets for the op-amps. I am going to try all5532 in place of the tlo72. Which by the way the choice of op-amps you use have a lot to do with the sound of this pedal. Keep us posted on sounds and mods.
Quote from: Dirk_HendrikQuote from: muganawesome!
ps: what's that "jamaican" resistor in the middle of pic#4 ?
Just another brand than the others.
On selling,
I've been thinking about it. Right now the total component cost is some 75 dollars. This will decrease when buying components in larger quantities. Apart from that the total building time was some 6 hours of work. In order to make some money on these either the price will be pretty high or I need to decrease building time. That is possible when building multiple at the same time. As said, I've been thinking about it.
you can do thet in 6 hr's? you must be a god :twisted:
very nice,
-tt
wow. it´s really impressive! what kind of pots did you use?
Markus