Stub Mandrel Posted February 23 Posted February 23 On 16/02/2025 at 17:32, LukeFRC said: Nice! Your own circuit design? Yesn there's a thread somewhere. The charge pump circuit its a touch noisy if it's placed before overdrive and compression but I use it last. Might build a bigger one with space for larger smoothing capacitors! Quote
Stub Mandrel Posted February 23 Posted February 23 On 16/02/2025 at 17:49, tauzero said: Reverse polarity power socket? Artwork error... I did change it. Quote
bremen Posted February 23 Posted February 23 2 minutes ago, Stub Mandrel said: Yesn there's a thread somewhere. The charge pump circuit its a touch noisy if it's placed before overdrive and compression but I use it last. Might build a bigger one with space for larger smoothing capacitors! I used a charge pump for the bias voltage on a 1176 compressor and was pretty nervous, as I'd heard that dreaded whine on an earlier project, but it's completely silent. I put 4.7uF surface mount MLCCs from the -ve output to ground on the back of the board under the chip, followed by 10 ohms and another pair of 4.7uFs. And decoupled directly between the power pins on the chip. good luck! Quote
LukeFRC Posted February 24 Posted February 24 So as well as the one I’ve already shown… this happened 4 Quote
LukeFRC Posted February 24 Posted February 24 Why a tiny little fiddly thing that needs expensive parts? well this is it compared to a 1590a size pedal - slightly wider - untill you plug something in and here is it compared to a 125b side - think standard size for a walrus pedal so it can take up way less space than a larger pedal. I think if they had side jacks that clashed you could fit two of these in the space of a 1590b MXR size enclosure. That’s with EBS Gold cables too! the downside is fiddlyness more expensive parts and probably not being able to use just any patch lead!! That’s EBS gold cables and a Cioks power cable. 4 Quote
Bigwan Posted February 25 Posted February 25 15 hours ago, LukeFRC said: Why a tiny little fiddly thing that needs expensive parts? well this is it compared to a 1590a size pedal - slightly wider - untill you plug something in and here is it compared to a 125b side - think standard size for a walrus pedal so it can take up way less space than a larger pedal. I think if they had side jacks that clashed you could fit two of these in the space of a 1590b MXR size enclosure. That’s with EBS Gold cables too! the downside is fiddlyness more expensive parts and probably not being able to use just any patch lead!! That’s EBS gold cables and a Cioks power cable. WANT! Quote
bremen Posted March 24 Posted March 24 That's neater than my version! What did you use to generate the B+? Quote
disssa Posted March 25 Posted March 25 16 hours ago, bremen said: That's neater than my version! What did you use to generate the B+? I used a high voltage power supply for Nixie-Tubes Quote
bremen Posted March 25 Posted March 25 16 minutes ago, disssa said: I used a high voltage power supply for Nixie-Tubes 555? Quote
Sibob Posted Wednesday at 23:30 Posted Wednesday at 23:30 Might anyone happen to have a schematic for the Tonefactor Cream Pie Deluxe? Can’t find anything online other than a vero layout, but I don’t have the know how to create a schem from such a layout. Anyone stashing one? Lol Si Quote
bobbass4k Posted Thursday at 01:01 Posted Thursday at 01:01 1 hour ago, Sibob said: Might anyone happen to have a schematic for the Tonefactor Cream Pie Deluxe? Can’t find anything online other than a vero layout, but I don’t have the know how to create a schem from such a layout. Anyone stashing one? Lol Si I should be asleep but the layout was so simple it took 5 minutes. The downside is having to read my writing - This is for thr NPN version based on the tag board layout. 1 Quote
Sibob Posted Thursday at 06:08 Posted Thursday at 06:08 (edited) 5 hours ago, bobbass4k said: I should be asleep but the layout was so simple it took 5 minutes. The downside is having to read my writing - This is for thr NPN version based on the tag board layout. Incredible, I’m very grateful, thanks. I don’t suppose, when you’ve got another 5mins, whether you might be able to adapt it with the NPN + Inverter layout? That tag board is on the same page as you no doubt found ver. 1. So many big thanks! Si 🫡 Edited Thursday at 06:53 by Sibob Quote
BabyBlueSound Posted Thursday at 13:13 Posted Thursday at 13:13 After messing up a 3-band RAT PCB, I decided to breadboard it out first. I was pleasantly surprised it worked on first attempt, I never breadboarded anything before. I almost cried when decyphering the transistor legs from the schematic, I think I would have been lost there without having an extra empty PCB where I could trace the legs properly, visually. Here's some fun swapping diodes and LEDs, I know everyone loves those 😁 1 Quote
bobbass4k Posted Thursday at 15:47 Posted Thursday at 15:47 9 hours ago, Sibob said: Incredible, I’m very grateful, thanks. I don’t suppose, when you’ve got another 5mins, whether you might be able to adapt it with the NPN + Inverter layout? That tag board is on the same page as you no doubt found ver. 1. So many big thanks! Si 🫡 Nothing different really just adding the inverter in. You could use a LT1054/1044 instead of the the 7660s, just don't connect pins 1 and 8. Slightly odd design 2 Quote
Sibob Posted Thursday at 18:44 Posted Thursday at 18:44 2 hours ago, bobbass4k said: Nothing different really just adding the inverter in. You could use a LT1054/1044 instead of the the 7660s, just don't connect pins 1 and 8. Slightly odd design Brilliant, thanks! Mini project perhaps 🙂 Si Quote
LukeFRC Posted Thursday at 21:01 Posted Thursday at 21:01 2 hours ago, Sibob said: Brilliant, thanks! Mini project perhaps 🙂 Si Similar topology to a SHO? with a tone pot and germanium transistor Quote
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