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Title: Tube FX-Loop AKA D*mblelator Post by: erwin_ve on December 28, 2008, 02:15:54 PM Since may 08 I am the happy owner of a Ceriatone Ots. After some serious modding of this amp I had one big desire; a tube fx-loop aka d*mblelator.
1 1/2 month ago I tried one of a ampgarageboard-member who's living in the Netherlands. It was such a nice experience, the d-lator added nice harmonics, compression and makes the od sound real sweet. So I decided to build one myself. Sourcing parts was time consuming. I finished it at Christmas eve and gigged it this weekend. It's really nice, also without effects! Tomorrow the lettering is done. Here some building pics: (http://members.chello.nl/e.verdurmen/goodies/board1.jpg) (http://members.chello.nl/e.verdurmen/goodies/board2.jpg) (http://members.chello.nl/e.verdurmen/goodies/board3.jpg) (http://members.chello.nl/e.verdurmen/goodies/board4.jpg) (http://members.chello.nl/e.verdurmen/goodies/chassis1.jpg) After drilling some holes: (http://members.chello.nl/e.verdurmen/goodies/chassis2.jpg) (http://members.chello.nl/e.verdurmen/goodies/chassis3.jpg) (http://members.chello.nl/e.verdurmen/goodies/chassis4.jpg) (http://members.chello.nl/e.verdurmen/goodies/chassis5.jpg) (http://members.chello.nl/e.verdurmen/goodies/chassis6.jpg) (http://members.chello.nl/e.verdurmen/goodies/chassis7.jpg) (http://members.chello.nl/e.verdurmen/goodies/compleet.jpg) Title: Re: Tube FX-Loop AKA D*mblelator Post by: hywelg on December 28, 2008, 03:43:29 PM Nice job, have you used a 12ax7 or other less gainy valve?.
I half wish I had held off doing my Klein based rack mount job. I rather like the idea of a tube based effects loop. Would appreciate your comparison with the Kleinulator if at all possible. Any chance of a layout drawing? Title: Re: Tube FX-Loop AKA D*mblelator Post by: erwin_ve on December 28, 2008, 03:57:27 PM Nice job, have you used a 12ax7 or other less gainy valve?. I half wish I had held off doing my Klein based rack mount job. I rather like the idea of a tube based effects loop. Would appreciate your comparison with the Kleinulator if at all possible. Any chance of a layout drawing? Thnx! I used a 12ax7, with the right voltages there's plenty of headroom. Unfortunatly I desoldered my kleinulator to use some parts of it in this build :P I think it's not fair to compare it because I made a Kleinulator early public domain version and that's a bit different from the build I've seen lately. For a layout of a d-lator you can visit ampgarage; a member(Funk) made a tutorial. I'm thankful for that otherwise I didn't start the build. The only difference is the power supply which is using a bridge rectifier instead of a voltage doubler. I'll attach a schematic of that. Title: Re: Tube FX-Loop AKA D*mblelator Post by: Thilo278 on December 28, 2008, 04:21:11 PM Nice!
How much did the whole build cost? I need a Dumbleator, too ;D Title: Re: Tube FX-Loop AKA D*mblelator Post by: hywelg on December 28, 2008, 04:37:19 PM Just read that thread on ampgarage http://ampgarage.com/forum/viewtopic.php?t=3944&postdays=0&postorder=asc&start=0 (http://ampgarage.com/forum/viewtopic.php?t=3944&postdays=0&postorder=asc&start=0)
I reckon my electronics knowledge is inadequate to try building my own!! You had to do quite a bit of parts swapping to get the right voltages in the right places. Title: Re: Tube FX-Loop AKA D*mblelator Post by: erwin_ve on December 28, 2008, 04:48:47 PM Just read that thread on ampgarage http://ampgarage.com/forum/viewtopic.php?t=3944&postdays=0&postorder=asc&start=0 (http://ampgarage.com/forum/viewtopic.php?t=3944&postdays=0&postorder=asc&start=0) You better look at: http://ampgarage.com/forum/viewtopic.php?t=4084&start=0&postdays=0&postorder=asc&highlight= (http://ampgarage.com/forum/viewtopic.php?t=4084&start=0&postdays=0&postorder=asc&highlight=)I reckon my electronics knowledge is inadequate to try building my own!! You had to do quite a bit of parts swapping to get the right voltages in the right places. The EU power design isn't mine; it's done by a member of ampgarage(Airniles). Swapping isn't the right method, you have to calculate this; Ohm's law is your friend. To recover triode=345v; to cathode triode= 268v Title: Re: Tube FX-Loop AKA D*mblelator Post by: erwin_ve on December 28, 2008, 04:52:09 PM Nice! How much did the whole build cost? I need a Dumbleator, too ;D Priceless :chairdance: :D Somewhere between €150- €200. Don't know exactly, had some parts in stock. The empty rack was the most expensive part, then the tranny. Title: Re: Tube FX-Loop AKA D*mblelator Post by: Thilo278 on December 28, 2008, 05:14:28 PM Sounds great ;D
Maybe I'll try to build one :) Title: Re: Tube FX-Loop AKA D*mblelator Post by: erwin_ve on December 29, 2008, 08:42:35 PM Today finished the lettering!
Title: Re: Tube FX-Loop AKA D*mblelator Post by: Steven_nl on December 30, 2008, 03:50:40 PM hi Erwin
looks great my Kleinulator is up and running again. I'll come by one of these days so we can compare. Cheers Steven Title: Re: Tube FX-Loop AKA D*mblelator Post by: hywelg on December 30, 2008, 03:57:57 PM Looking forward to reading that comparison.
Title: Re: Tube FX-Loop AKA D*mblelator Post by: erwin_ve on December 30, 2008, 05:16:04 PM hi Erwin looks great my Kleinulator is up and running again. I'll come by one of these days so we can compare. Cheers Steven Hi Steven, Looking forward to that! I'll make some fresh coffee with oliebollen. cheers, Erwin Title: Re: Tube FX-Loop AKA D*mblelator Post by: jezzbo on December 31, 2008, 09:59:08 AM Hey Steven and Erwin,
Keep us informed will ya? thanks Jesse Title: Re: Tube FX-Loop AKA D*mblelator Post by: Steven_nl on December 31, 2008, 10:43:28 AM Hi Guys
I need to wait on a couple of new FET's. Mine blew. I had the unit repaired but not with the same parts. Mike was kind enough to offer to send me a few so I'll put those in and then I'll meet with Erwin for an A/B. Title: Re: Tube FX-Loop AKA D*mblelator Post by: mcinku on January 02, 2009, 09:04:31 PM can't wait to read your review
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