madbeanpedals::forum

Projects => Build Reports => Topic started by: juansolo on June 19, 2014, 10:33:08 PM

Title: Big Baby
Post by: juansolo on June 19, 2014, 10:33:08 PM
You've seen this before in the form of Rej's Bax30

This is a peach. Along with the STM800v2, I think this is really nailed on and awesome. It's the HV version of the Baby Boobtube. But then we wanted a vol/gain control on the front of it, well that called for a buffer and we didn't want to use anything pedal based for it, so it gets one half of a 12AU7 (actually a HiFi buffer). Then we wanted more tone options on the back, so we added a Baxandall tone stack and used the other half of the 12AU7 as another buffer before that.

Different to the baby, it doesn't really saturate for a start. Probably the Bax does that, but as the 6BR7 has so much output, it still runs it with no problems at all. All round it just sounds bloody lovely.

(https://scontent-b.xx.fbcdn.net/hphotos-xpa1/t31.0-8/10497256_560753774031347_7490413162904525036_o.jpg)

(https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-xpa1/t31.0-8/10483829_560753754031349_8811418422622529863_o.jpg)
Title: Re: Big Baby
Post by: wgc on June 20, 2014, 02:15:03 AM
Lordy

That's cool....
Title: Re: Big Baby
Post by: cooder on June 20, 2014, 03:49:05 AM
Full grown wickedness....! :o
Title: Re: Big Baby
Post by: pickdropper on June 20, 2014, 04:37:03 AM
That's beautiful. 
Title: Re: Big Baby
Post by: Stomptown on June 20, 2014, 04:40:14 AM
Woah dude! That is brilliant. So aesthetically pleasing I wanna eat it!  Demo???
Title: Re: Big Baby
Post by: juansolo on June 20, 2014, 06:01:49 AM
Sounds the same as Rej's ;) Might do something though at some point...
Title: Re: Big Baby
Post by: lincolnic on June 20, 2014, 06:06:07 AM
Mmm...tagboard...
Title: Re: Big Baby
Post by: mah62 on June 20, 2014, 06:14:23 AM
Wow! This is effing beautiful :D

Two questions:

what voltage is this running at?

Is there a schematic and build docs to this
or is is it a proprietary thing?

.....must have thing of beauty!

Cheers, Mark

Title: Re: Big Baby
Post by: chuckbuick on June 20, 2014, 06:19:02 AM
Fantastic!  I dig all your builds but the tube stuff is super cool.
Title: Re: Big Baby
Post by: juansolo on June 20, 2014, 06:20:08 AM
Quote from: mah62 on June 20, 2014, 06:14:23 AM
Wow! This is effing beautiful :D

Two questions:

what voltage is this running at?

Is there a schematic and build docs to this
or is is it a proprietary thing?

.....must have thing of beauty!

Cheers, Mark

190V on the plates.

There is a schematic, but my site's down until I've got enough bandwidth to upload it to some hosting that I've bought. Should be back in a week or so, but at a new location.
Title: Re: Big Baby
Post by: mah62 on June 20, 2014, 07:31:57 AM
Quote from: juansolo on June 20, 2014, 06:20:08 AM
Quote from: mah62 on June 20, 2014, 06:14:23 AM
Wow! This is effing beautiful :D

Two questions:

what voltage is this running at?

Is there a schematic and build docs to this
or is is it a proprietary thing?

.....must have thing of beauty!

Cheers, Mark

190V on the plates.

There is a schematic, but my site's down until I've got enough bandwidth to upload it to some hosting that I've bought. Should be back in a week or so, but at a new location.

Brilliant, thanks mate!
Title: Re: Big Baby
Post by: jubal81 on June 20, 2014, 01:29:56 PM
Top-notch! How do you do the sleeves on the component leads?
Title: Re: Big Baby
Post by: insomniac2295 on June 20, 2014, 01:58:03 PM
Quote from: jubal81 on June 20, 2014, 01:29:56 PM
Top-notch! How do you do the sleeves on the component leads?

i was wondering the same thing!
Title: Re: Big Baby
Post by: Leevibe on June 20, 2014, 02:17:30 PM
Beautiful!! That's so clean for all you've got going on in there. You always make it look effortless. Amazing.
Title: Re: Big Baby
Post by: juansolo on June 20, 2014, 04:53:55 PM
Quote from: insomniac2295 on June 20, 2014, 01:58:03 PM
Quote from: jubal81 on June 20, 2014, 01:29:56 PM
Top-notch! How do you do the sleeves on the component leads?

i was wondering the same thing!

Strip a bit off some wire and push it on ;)
Title: Re: Big Baby
Post by: GrindCustoms on June 21, 2014, 04:57:09 AM
Looks great as everything you do! 8)