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Dandolin wrote:interesting distinction by LaoWiz between the use of these parts for glitchy purposes as opposed to "amp-like" drive....

found a snaxy fuzz on reverb by a builder (Capitalist Death Cult?) who claims he's harnessed a PT2399 for distortion tones that outdo the 4049/4069 for straight drive tones.

i do enjoy the gained up tones i've heard from the Echo Degrader and from diy Noise Ensemble jawn.

That's really interesting, wonder what he is doing with the PT chip. I have a Noise Ensemble circuit on the breadboard as I am using it for this parallel fuzz I am working on. About 10 years ago I had a wicked vibrato circuit going from tweaking a noise ensemble so the idea was to incorporate that but can't remember what I did which has been super frustrating as it was adding one capacitor and a jumper I think. In trying to rediscover the vibrato I have been trying different things with that circuit and quite liked the distorted sound of it with the wet signal killed. Not useful for this thing but maybe something down the line.

I managed to breadboard the 22/7 and green ringer about 99% of the way last night. So tonight I just need to pop in transistors and see if it fires up. Instead of the 22/7 tone stack I stuck in the one from the Pharaoh as the switching in the 22/7 schematic was wigging me out. I'll report back if there's anything good to report!

woot woot
2022 - year of the CMOx

and just because, gonna throw Pigtronix Fat Drive on the pile, mostly because it's damn cheap used

Funny you mention it, as I dug out my Dist X just a couple days ago

I still have plans to do SOMETHING with that circuit...eventually.

Dandolin wrote:woot woot
2022 - year of the CMOx

Welp, don't think me and the 4049 jive well. The overall impression I got tonight from the 22/7 reminded me of my experience with the chip and tinkering with some square wave designs years ago, just something stale about the sounds that I get from the chip. And kinda the same feeling I get from the square wave fuzz from the data corruptor, just something missing. The 22/7 I have going has a huge noise floor so could be an error in my bread board build as I didn't have time to go over it again but may not bother as it reminds me also why I don't like muffs much. At least the ones I have built. One of the best sounding and most musical pedals I ever played was an OG Ram's head but I think I am just no good at building muffs!

But the green ringer sounds pretty great, I can't believe I never bothered to tinker with that one. Over the past couple of weeks I have wanted to Life Pedal the Foxx Tone Machine as the fuzz only mode on the FTM is one of my favs and the octave up mod is a little too much octave for me so I think I shall try that.

What's your low gain jawn dude?

I've decided I hate all my low gain sounds and am heading in to the rehearsal room to do a shootout between like 10 different ones. I'll probably end up buying a new pedal anyway because I'm starting to think this is a 90% imagined problem.

think the mad professor stone gray has this design

goroth wrote:What's your low gain jawn dude?

I've decided I hate all my low gain sounds and am heading in to the rehearsal room to do a shootout between like 10 different ones. I'll probably end up buying a new pedal anyway because I'm starting to think this is a 90% imagined problem.

depending on my mood, ss/bs mini, dod looking glass, the anthill overdrive side of the Magivore Tommy D built me (which i think is a highly tweak'd muff fuzz?), or driving notion - i like it either clangy or glassy in the lower gain regions, and those all deliver that in interesting variations o and Xtortion with the gain almost off

also, old school harmonic perc with the gain way down - unfortunately the current trend is for most builders to use higher gain transistors in these which tend to make'em xtra splatty more than clangy, so the low-gain-perc thing will def depend on the build.

as much as i like the CMOSes i tend to like them with a bit more gain on them, tho red llama/hot tubes'll do just fine for lower gain duty for me too, but they can tend to get flubby/splatty in the nether regions if the input is bassy stacking a bog standard toobskreema into a red llama with the gain way down on both is actually pretty good tho cumbersome af

LaoWiz wrote:

Dandolin wrote:woot woot
2022 - year of the CMOx

...sadness...

But the green ringer sounds pretty great, I can't believe I never bothered to tinker with that one. Over the past couple of weeks I have wanted to Life Pedal the Foxx Tone Machine as the fuzz only mode on the FTM is one of my favs and the octave up mod is a little too much octave for me so I think I shall try that.

moral vict'ry

and, yeah, don't blame ya re: the CMOSsery - i def hear widely varied reports on these - seems maybe a love it or hate it thing

i tend to like the hairier/grainier end of the spectrum (mebbe cuz i'm deef )

i think it probs takes a lot of filtering to get these sounding smoother

also, if ya don't dig BMPs that 22/7 might not be the CMOS design for a jumping-off point (duh! thx Cpt Obvi)

qersty wrote:think the mad professor stone gray has this design

huh. thx - interesting
must be doing some fancy pants bass filtering to get to the tone they're advertisin'

Jero wrote:Funny you mention it, as I dug out my Dist X just a couple days ago

I still have plans to do SOMETHING with that circuit...eventually.

Lots of interesting builds gonna be built from this thread.

Chankgeez wrote:

Jero wrote:Funny you mention it, as I dug out my Dist X just a couple days ago

I still have plans to do SOMETHING with that circuit...eventually.

Lots of interesting builds gonna be built from this thread.

oof - missed that (what i get for reading the thread backwards )

but, yass, this thread is definitely meeting and exceeding my hopes for it

forgot you were in the X club, J

I've been meaning to breadboard one of these for a long while as the demos have always sounded really good to me...



I think there are some clone PCBs out there for it now too?

I have an old big box Hot Tubes that I need to use more than I do.

revolution deux'd

is this the right chip? whoismarykelly has it on sale right now: https://www.bsriaudio.com/product/gfz-cmos-glitch-fuzz

i'd let whoismarykelly confirm that one way or the other, but it seems likely, and i certainly don't want to limit discussion here to only the 4049/4069 if there are other CMOS inverter chips that produce interesting results

pretty sure Parasit Studio produces more than one device where CMOS inverters are used/abused for fuzzy and/or glitchy ends