madbeanpedals::forum

Projects => General Questions => Topic started by: frankie5fingers on July 21, 2013, 09:15:10 PM

Title: Java Boost - Know What You Get When You Cross...
Post by: frankie5fingers on July 21, 2013, 09:15:10 PM
...These two things?
Nothing.
Anybody make a Java using this layout?
Title: Re: Know What You Get When You Cross...
Post by: Scruffie on July 21, 2013, 10:29:23 PM
My first build! Also it's negative ground.
Title: Re: Know What You Get When You Cross...
Post by: frankie5fingers on July 22, 2013, 12:35:15 AM
With an OC44?
That explains why it doesn't power up.  I've never used an OC44 in a negative ground circuit...what am I missin?
How'd you wire it Scruff?
Like this?

If not ... would you mind PM'ing me your wiring scheme?
Thanks, Frank
Title: Re: Know What You Get When You Cross...
Post by: Scruffie on July 22, 2013, 01:01:49 AM
Quote from: frankie5fingers on July 22, 2013, 12:35:15 AM
With an OC44?
That explains why it doesn't power up.  I've never used an OC44 in a negative ground circuit...what am I missin?
How'd you wire it Scruff?
Like this?

If not ... would you mind PM'ing me your wiring scheme?
Thanks, Frank
Looks right, just any standard 9V negative ground.

Yuppp, with an OC44.
Title: Re: Know What You Get When You Cross...
Post by: frankie5fingers on July 22, 2013, 01:15:51 AM
Wow - I'm lookin' at it.  I see it, but it doesn't make sense cause it's an OC44, right?
Learn sumpin' new every day..

Just looked at it again, and there's the.... wait for it....  "of course it is" moment.

Oh what fools we mortals be.


As always, thanks Scruffie, Frank
Title: Re: Java Boost - Know What You Get When You Cross...
Post by: fendman on July 25, 2013, 08:44:32 AM
I have just built this layout and it is really good in front of a fuzz, or OD...  I used a Ram's Head muff PI. It sustains forever.

Seems a lot of guys found this not working...due to thinking it was positive grounding. But I can assure you this layout works.  I have used an OC44.

Title: Re:
Post by: ch1naski on July 25, 2013, 01:01:10 PM
Quote from: fendman on July 25, 2013, 08:44:32 AM
I have just built this layout and it is really good in front of a fuzz, or OD...  I used a Ram's Head muff PI. It sustains forever.

Seems a lot of guys found this not working...due to thinking it was positive grounding. But I can assure you this layout works.  I have used an OC44.
that's the layout I used (not that torchy's is bad, I just saw mark's first.)

I was a bit surprised that it was negative ground on a PNP transistor circuit, too. Threw me for a loop.

Sent from my Nexus 7 using Tapatalk HD
Title: Re: Java Boost - Know What You Get When You Cross...
Post by: frankie5fingers on July 27, 2013, 05:54:23 PM
Once I swapped ground pins - worked great, sounds great too.
Question though; Torchy's layout has the option for a 100n vs the 10n.  Anybody use the 100n?  Any difference in tone?
Title: Re:
Post by: ch1naski on July 27, 2013, 07:40:31 PM
Wouldn't that put a bit more treble bleed to ground on the tone control? mine gets quite a bit of bass (high cut) on the tone already, built stock
Title: Re: Java Boost - Know What You Get When You Cross...
Post by: frankie5fingers on July 28, 2013, 05:11:55 PM
That's my thought.  I use pretty much all the cut now, I'd think it'd get mushy.  I guess there's only one way to find out...