=^^= Happy Halloween =^^=
Side-stepped and built new CF arms for my Discovery while waiting on PCB fab.
That’s VEKTOR. :D
This is devolving into pictures of VEKTOR dev.
At VEKTOR MK II rev 6 I have DC-coupled the input amplifier to the two internal clipping amplifiers which takes the clippers off of the virtual ground circuit. High-pitch oscillations have been eliminated. Clean and dirty input amplifiers are now separate and two levels of input-clipping (compression) have been added to the dirty end. The input amplifiers are now based on the OPA2134 while the high-gain clippers are based on the wide-swinging TLC2272. I was hoping to get away with a 5532 in there…doesn’t cut it…NEED the swing.
These are probably the final VEKTOR Mk II clippers and shapers. Some Schottky action. :D
Some major changes to the VEKTOR Mk II circuit topology in version 5 A (NO DISASSEMBLE! D:) and I was able to solve some of the issues I was having with loading and internal impedance. I also have the transistors clipping asymmetrically and nicely. And with THAT everything sort of came to life…so…WOOT. :D
I started a new fuzz circuit prototype on the big breadboard that combines diode clipping and transistor clipping on two independently voiced channels. The layout includes two parallel clipping amplifiers with buffered tone contours and a clean blend at the output. The amplifiers are op-amp based diode-limited high-gain pushing good ol’ bipolar transistors which are biased to clip asymmetrically for lots of synthy mid-range harmonics. The idea is to provide a textured fuzz source for driving octaves and bass synth chains for bass and lead tones. If it goes on the big breadboard then it’s pretty important around here.