VoxEXP II and Sweet 16 layouts posted

Started by Bucksears, July 03, 2007, 08:31:20 AM

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Bucksears

I have uploaded the VoxEXP II and Sweet 16 layouts to my site, located here:
http://www.4thlevelmedia.com/stompboxes.html

I dubbed the VoxEXP II in reference to its refined-MiniBooster cousin, the BSIAB II. In the VoxEXP II, I have subbed out the two 15k resistors for 100k trimmers, so the voltage can be adjusted. I just made a PCB of this layout this week, but haven't gotten around to populating/building it.  *Sorry, but the VoxEXP II parts layout file is having problems and is not displaying correctly; I'll try to have that corrected in a day or two.
The Sweet 16 layout is a bit small and tightly populated to be able to fit in a few different-size cases; it DOES include pads for the optional 'Cx' cap.

For both layouts, whenever possible, the resistors have minimal spacing so they are to be placed vertically, rather than laying down flat on the board. Also, both layouts are sized print-ready; you do not have to rescale them. As such, they are at a very high resolution to minimize any fuzziness. Sorry I don't have the schems posted, but for those do have them, please feel free to check over my work and report any errors (I'm only human).
***NOTE*** DO NOT PRINT OUT THE LAYOUTS IN INTERNET EXPLORER - it does not size correctly.

Thanks,
Buck

John Lyons

I missed this the first time round...Thanks buck!

No other replies..sheesh...

John

Basic Audio Pedals
www.basicaudio.net/

Bucksears

Quote from: John Lyons on July 05, 2007, 11:14:40 AM
I missed this the first time round...Thanks buck!

No problem. The original did some great tones direct/headphones on a clean amp model (Twin) on my Digitech RP-100 a few years ago; it didn't sound as good through my amp at the time, so I scrapped it. Recently, I saw that it was using fixed resistors instead of trimpots on the non-mu-amp Q's, so I decided to revisit it. I didn't try too many different transistors at the time, so that might help as well.
I'm really hoping that some people might take a closer look and find some ways to open it up a bit more (scale down the tonestack/volume?); it's a little compressed, but still has a nice Vox-ish chime to the distortion. It's more of a (slightly) higher-gain sound than the English Channel, so that's what has me holding on to it.
The EC is ok (IMO), but it seems to get a little fuzzy/flabby for my tastes; I have to turn the treble up and back off on the gain to get a (usable, for me) overdriven sound. Anything above that, it's mushy.

- Buck

markm

Buck, I  can't get the files to load....anyone else having this problem?  :icon_confused:

John Lyons

I've got dial up (only thing available here) and they work but do take a while to come up.
I'm in the habit of doing other things while things download. Sandwich anyone?

John
Basic Audio Pedals
www.basicaudio.net/

Bucksears

Quote from: markm on July 05, 2007, 12:47:31 PM
Buck, I  can't get the files to load....anyone else having this problem?  :icon_confused:

Right-click, Save-As worked fine for me right here, just now.

- Buck

Tuemmueh

it seems that the VoxEXP-Layout has some errors, so my Firefox is unable to load it or to download it completely.

btw ... where can I get the VoxEXP-Schem?

mydementia

Right-click - 'save as' worked just fine for me too...

I'm really looking forward to the first build report on both circuits - my auto-bias Sweet16 circuit (from RG's old layout) sounds great but has an annoying background hiss...

Nice looking layouts Buck!!
Mike