via this auction"Features:
* Analog circuitry cloned from original TB-303 for authentic sound
* MIDI / DIN Sync for connectoing to your other gear
* Can transfer patterns to / from PC via USB
* Non-volatile memory; no backup battery required
* Can play notes directly from keyboard
* Extensive support community for bouncing ideas, mods and upgrades
Rear Panel I/O:* MIDI In / Out / Thru
* DIN Sync In / Out
* CV Out
* Gate Out
* Line Out
* Headphone Out
* USB
* Mix In
* Power In
Modz:* Increased filter low end
* Increased envelope mod range (goes all the way down, can be extended 3x with rear panel switch)
* VCF input jack (run any audio signal through the filter)
* VCO off switch (disconnects oscillator from rest of signal path; handy when you're using VCF input jack)
* Envelope sustain extender switch (makes notes last forever)
* IC15A/B and Q1-Q4 are socketed (so you can switch between BA6110 and BA662A without soldering)
* Center detent tuning pot (easily get it back in tune)
* Custom LED colors
* Custom button colors"
some more important mods are actually missing: -
ReplyDeleteR97 should be lowered to 8.3k, replace R122 with 68k and replace C21 with .015uF
these parts have an impact on the filter resonance
the "decay" pot somehow also has a different behaviour than on a TB (its a lot less impact), not sure whats behind this.