Hmm! Strange that he verified it. I've just made it. It works OK (took me some time to figure out because the starve is reversed on the original, i.e. when the the pot is turned all the way, it's "unstarved"), but it doesn't oscillate nearly as wildly as the original and the fuzz gates/fizzles a lot more than the original, too.
Yeah, the unused pins is grounded in this layout (pin 9,11,14. Are you using the CD4049BE? If using the more common CD4049UBE you wont get as crazy sounds as intended.
Ahh! So it's only the unused input pins... Then you're right.
Yes, it's the CD4049BE (buffered). Every layout I've seen stresses this, so that's what I bought. But the creator of this layout (http://guitar-fx-layouts.42897.x6.nabble.com/Dwarfcraft-Great-Destroyer-v2-td5695.html) says that the CD4049 - the specific name on the chip is CD74HC4049E - from Banzai doesn't work properly (which is what I have).
Let this be a warning to others trying to create this!
My local electronics store has what I hope is a proper CD4049BE.
I got the CD4049BE from the local shop, and while it was advertised as a CD4049BE, the actual chip's name is a HEF4049. It's working as intended, but to my personal taste that's not enough, hehe. It's not nearly as wild and oscillating as the one Aen from Dwarfcraft demos here: https://www.youtube.com/watch?v=3BokdMG8DNc
But as he responded to a comment from a guy who has the same complaints as me: "it's just that every Destroyer will sound a little different, and each one of those will respond to every varied input sourve differently. You don't exactly have a fuzz pedal, you have a collaborative circuit/ticket to adventure!"
It IS a highly sensitive/wildly varying circuit, people are saying everywhere. Too many factors, I guess. We'll see if it's box-worthy.
Anyhoo, thanks for a layout! My issues are definitely not the layout's fault and it could explain why Dragao has no complaints.
Yeah, I think a few of us were talking about this on an unrelated post. It’s just a finicky circuit. Apparently it is dependent upon not only the right part but auditioning many to find the one individual chip that works best. I built one and it does some of the crazy stuff but nothing like the demos I’ve seen. I think it was sesh that recommended trying the Robot Devil instead. Which I plan on trying soon.
So yeah ..made it with that chip in my link, sounded a bag of shit, as in not correct at all, wrong chip bag of shit. Use a 4049UBE, works more like the demo vids then.
I built it yesterday, but obviously something is wrong : I always have dry sound coming through, even with the volume pot set to minimum... I triple-checked my wiring, but it seems to be ok. Could it be chip-related?
I get the same, just a dry signal on second attempt with two separate MC14049BCPs. I'm pretty sure it briefly burst to life before the pots were soldered properly but now i get clean with the drive pot acting as a volume and the volume pot constant or off at minimum.
Daft mistake as ever...I'd soldered the starve 2 pin straight to the board to save space and it had come loose. Swapped for a wire and now i'm getting a lovely mad stutter.
These CD4049BE seem to be tricky to find. CD4049UBE always seems to come up instead. I've got some different chips I want to try In it... MC14049BCP and I found one called (closest) CD4049BM. BM sounds closer than UBE. Buffering seems to tame things a bit, but whether that's a good thing or not, is up to you. Anyway, I'll report back my findings 😀
It's been a while since I built one of these but the buffered motorola chip (the one with MC prefix) was the last one I bought a lot of on ebay - and it worked out quite well. The buffering can't really handle gain and so it causes this effect to chop and squeal with all kinds of weird, noisy feedback. If you turn it on and it sounds loud and broken, you built it correctly.
I’d love to use Mouser more, but the shipping is brutal and the last time I used them they sent me an empty box with no parts. Maybe it was UPS. From Digikey shipping was four or five bucks and they shipped within a few hours.
That's probably true. However, I seem to remember Ian buying counterfeit OPA2134's from Mouser a while back. So they aren't infallible. I like to try various suppliers. No one is a one stop shop these days. Someone on the PPCB forum mentioned getting this particular chip from Digikey so that's where I went.
Consequently, (and it could be my imagination) but I think the 100uf filter cap might hamper a bit of the crazy nature of this circuit. I think maybe omitting it and embracing the noise is best here. Glad to finally get this thing going after...way too long, hahaha. Thanks Anders and all. Oh I did also add a 50k trimmer in place of the 22k resistor. Just for fine tuning. Just enough room for one when you pull that value.
That makes sense... there are some Devi Ever pedals I have built that lose all of their craziness when you add power filtering, so it could totally be the case here as well.
Tag it,man! And another hundred thanks for the layout!
ReplyDeleteDang! I'll tag it!
DeleteHmm! Strange that he verified it.
ReplyDeleteI've just made it. It works OK (took me some time to figure out because the starve is reversed on the original, i.e. when the the pot is turned all the way, it's "unstarved"), but it doesn't oscillate nearly as wildly as the original and the fuzz gates/fizzles a lot more than the original, too.
..I read somewhere that it might be the CD4049 I bought from Banzai. Gonna try an MC14049BCP
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteYeah, the unused pins is grounded in this layout (pin 9,11,14. Are you using the CD4049BE? If using the more common CD4049UBE you wont get as crazy sounds as intended.
DeleteAhh! So it's only the unused input pins... Then you're right.
ReplyDeleteYes, it's the CD4049BE (buffered). Every layout I've seen stresses this, so that's what I bought. But the creator of this layout (http://guitar-fx-layouts.42897.x6.nabble.com/Dwarfcraft-Great-Destroyer-v2-td5695.html) says that the CD4049 - the specific name on the chip is CD74HC4049E - from Banzai doesn't work properly (which is what I have).
Let this be a warning to others trying to create this!
My local electronics store has what I hope is a proper CD4049BE.
Ah, great info! First time I've Heard of faulty 4049's. Looking forward to hear how it turns out with the proper chip.
DeleteAdded some notes below the layout to make sure to use a proper CD4049BE.
DeleteI got the CD4049BE from the local shop, and while it was advertised as a CD4049BE, the actual chip's name is a HEF4049. It's working as intended, but to my personal taste that's not enough, hehe. It's not nearly as wild and oscillating as the one Aen from Dwarfcraft demos here: https://www.youtube.com/watch?v=3BokdMG8DNc
ReplyDeleteBut as he responded to a comment from a guy who has the same complaints as me: "it's just that every Destroyer will sound a little different, and each one of those will respond to every varied input sourve differently. You don't exactly have a fuzz pedal, you have a collaborative circuit/ticket to adventure!"
It IS a highly sensitive/wildly varying circuit, people are saying everywhere. Too many factors, I guess. We'll see if it's box-worthy.
Anyhoo, thanks for a layout! My issues are definitely not the layout's fault and it could explain why Dragao has no complaints.
I just dropped bunch of cash on the mc14049...I'll let you know how it goes...
ReplyDeleteI build this up today using the mc14049bcp, but I don't get any oscillation. I also tried the HEF4049BP which wasn't right at all.
ReplyDeleteIf anyone has the right chip and wants to sell me one I'd be very grateful!
Yeah, I think a few of us were talking about this on an unrelated post. It’s just a finicky circuit. Apparently it is dependent upon not only the right part but auditioning many to find the one individual chip that works best. I built one and it does some of the crazy stuff but nothing like the demos I’ve seen. I think it was sesh that recommended trying the Robot Devil instead. Which I plan on trying soon.
ReplyDeleteNice one.. cheers
ReplyDeleteDo the lugs on drive 3 and starve 3 stay empty or are they attached to ground?
ReplyDeleteNo, they should be left empty.
DeleteAny idea if this chip is the correct one?
ReplyDeletehttps://www.bitsboxuk.com/index.php?main_page=product_info&cPath=140_158&products_id=3367
Yep, thats what I've used in the past
ReplyDeleteAce. I shall order that tonight then
DeleteSo yeah ..made it with that chip in my link, sounded a bag of shit, as in not correct at all, wrong chip bag of shit. Use a 4049UBE, works more like the demo vids then.
ReplyDeleteI built it yesterday, but obviously something is wrong : I always have dry sound coming through, even with the volume pot set to minimum... I triple-checked my wiring, but it seems to be ok.
ReplyDeleteCould it be chip-related?
What IC are you using?
DeleteThank you for your reply, Ian.
DeleteI'm using an old MC14049BCP by Motorola. I have two of them, which give the same results.
I get the same, just a dry signal on second attempt with two separate MC14049BCPs. I'm pretty sure it briefly burst to life before the pots were soldered properly but now i get clean with the drive pot acting as a volume and the volume pot constant or off at minimum.
DeleteDaft mistake as ever...I'd soldered the starve 2 pin straight to the board to save space and it had come loose. Swapped for a wire and now i'm getting a lovely mad stutter.
DeleteThese CD4049BE seem to be tricky to find. CD4049UBE always seems to come up instead. I've got some different chips I want to try In it...
ReplyDeleteMC14049BCP and I found one called (closest) CD4049BM. BM sounds closer than UBE. Buffering seems to tame things a bit, but whether that's a good thing or not, is up to you. Anyway, I'll report back my findings 😀
It's been a while since I built one of these but the buffered motorola chip (the one with MC prefix) was the last one I bought a lot of on ebay - and it worked out quite well. The buffering can't really handle gain and so it causes this effect to chop and squeal with all kinds of weird, noisy feedback. If you turn it on and it sounds loud and broken, you built it correctly.
DeleteAnyone in the US still trying to get one of these working as intended, Digikey has the CD74HC4049E in stock.
ReplyDeleteThe CD74HC4049E is the rebranded version of the 4049BE
ReplyDeleteYeah
DeleteMouser carries the CD74HC4049E too
ReplyDeleteI’d love to use Mouser more, but the shipping is brutal and the last time I used them they sent me an empty box with no parts. Maybe it was UPS. From Digikey shipping was four or five bucks and they shipped within a few hours.
DeleteBummer, the thing I like about Mouser is their parts are legit, you never have to worry if it’s the real one or not
DeleteThat's probably true. However, I seem to remember Ian buying counterfeit OPA2134's from Mouser a while back. So they aren't infallible. I like to try various suppliers. No one is a one stop shop these days. Someone on the PPCB forum mentioned getting this particular chip from Digikey so that's where I went.
DeleteIf you are in US, stombox parts has been absolutely amazing. Shout out to amplified parts as well!
ReplyDeleteYeah, I use both. And Small Bear isn’t quite what it once was but it’s still a good resource.
DeleteConsequently, (and it could be my imagination) but I think the 100uf filter cap might hamper a bit of the crazy nature of this circuit. I think maybe omitting it and embracing the noise is best here. Glad to finally get this thing going after...way too long, hahaha. Thanks Anders and all. Oh I did also add a 50k trimmer in place of the 22k resistor. Just for fine tuning. Just enough room for one when you pull that value.
ReplyDeleteThat makes sense... there are some Devi Ever pedals I have built that lose all of their craziness when you add power filtering, so it could totally be the case here as well.
DeleteOh interesting, I'll keep that in mind. This circuit actually reminds me of the Devi LP a bit actually. I love that little circuit.
Delete