Aleph Null
Well-known member
I was happy with the sound of the original Weeble, but I quickly grew frustrated with the low headroom.
I had originally intended on housing the new version in the old enclosure, but I couldn't get the rate LED to work in a satisfactory way, at least without too many additional parts. The upshot is that I can use my standard bypass board.
The Weeble started as my take on Tim Escobedo's Wobbletron and added a second phase stage for more depth and dimensionality. In this version I swapped the JFETs for LDRs, which meant I needed to change some of the values in the phase stages as well. I also increased the range of the Rate control stightly. The depth is good at 9v and better at 18v. The sweep is much smoother with LDRs. The capacitors in the all-pass stages really do make a difference in the tone of the effect. The Throb and Chop switches allow the capacitor in each stage to be selected. Because the phasing and vibrato effect are frequency dependent, the perceived depth can change depending on the guitar, pickup selection, or where you are playing on the neck. The voicing options allow you to dial that in.
I'm pleased with this verison. I find phase vibrato to be much more nuanced and interesting than delay based implementations.
Here's a demo:
As always, I have extra PCBs. If you'd like one, DM me.
I had originally intended on housing the new version in the old enclosure, but I couldn't get the rate LED to work in a satisfactory way, at least without too many additional parts. The upshot is that I can use my standard bypass board.
The Weeble started as my take on Tim Escobedo's Wobbletron and added a second phase stage for more depth and dimensionality. In this version I swapped the JFETs for LDRs, which meant I needed to change some of the values in the phase stages as well. I also increased the range of the Rate control stightly. The depth is good at 9v and better at 18v. The sweep is much smoother with LDRs. The capacitors in the all-pass stages really do make a difference in the tone of the effect. The Throb and Chop switches allow the capacitor in each stage to be selected. Because the phasing and vibrato effect are frequency dependent, the perceived depth can change depending on the guitar, pickup selection, or where you are playing on the neck. The voicing options allow you to dial that in.
I'm pleased with this verison. I find phase vibrato to be much more nuanced and interesting than delay based implementations.
Here's a demo:
As always, I have extra PCBs. If you'd like one, DM me.
