melos effectmatic mods

original schematic..

modded schematic.

fyi. note that i ended up needing a 3P3T switch for the HP/BP/LP selection, if i wanted the asymmetry in there. maybe someone smarter can think of a more convenient way of doing this, if this extra overkill option is at all needed. anyway, enjoy.

the Hohner Bass Threemörk, pt. XII: expansion

or, at least, room for it. see below.

once i got the envelope filter working, it did indeed get modded a bit.
mostly boring stuff to get it to do its job a bit better, like a trimpot here and there. no biggie, smalls.
for the bigger changes: see below.

in the end i liked the darn thing so much i needed it to be close to my baby - preferably in the same box. so i figured i got some place left in the briefcase lid..
which has the side effect of opening up some space for future inhabitant effects.
if you knowaddamsayin.

need to tidy it all up a bit still, but you get the idea.
sound files to come. as always. mañana.

controls are, top to bottom:
recycled Hohner Bass 3 preset array for HP/BP/LP (yes, i though that would be not-quite-ha-ha-funny. my inner nerd needs to feed every once in a while.)
then up - down switch, hi - low freq switch, asymmetry switch which messes with the resonant frequency of the filtering, expanding on the hi/low choice.
then peak pot, sensitivity pot (rather than volume - she wasn't playing nicely with the hohner so volume is now a fixed resistor), and blend pot.
then 3-pos. slope speed switch for slower attack speeds, and touch points to instantly collapse the filter so you don't need to turn the sensitivity knob at breakneck speed. me lazy.

overconfident as i was (or distracted, i forget) i prematurely drilled an extra hole for CV input, but haven't gotten round to implementing that yet. i feel it oughta be possible though.
sequencer goes OneUp! on PileO'ToDo.

oh, and the lens screwed with the perfectly straight lines of the board, obviously.

i might be falling in the Big L with that mutron knockoff.
it does wonders for the Bass3.

just so you know.

Bow Wow

I finished the Gristlizer Prototype.
put it in a box for Jelle to try out.
although i had to tell him i'm not fully satisfied with it yet - the Fet i used might not be up to it, or maybe it's inherent to the design, but in certain knob positions you hear the LFO bleeding through more than i would like. mostly w/ Ramp Up and Square - seems the steep falling edge is responsible.
Will do just fine for industrial type processing - both throbbing and gristleing -  but i will definitely have to come back to it later. I'm a perfectionist and perfect is a skinned knee, apparently.

So i started repairs on that Melos Effectmatic box. it used to crackle like hell, and it was unresponsive in certain settings (if not all.)
It has now officially been fixed by getting a certain out-of-whack voltage divider up on its feet again.
thing is, now it's lying here open and unscrewed and with its guts bare: i feel this one has room for improvement as well.. Oww boii. blend? sensitivity control? master volume? wider range? hmm.
if i can find my capital M, the Modding can begin.