I revisited and refined the Sagan Delay circuit I put together a few years ago. I added an always on preamp boost, improved the clipping and tone shaping section of the circuit, and added an onboard LFO for modulation. Gone are the individual delay volume and time controls, but I can add and subtract the delay signals from each individual PT2399. The effects loop changed a little as well; the two modes are now post feedback loop or within the feedback loop for some out of this world sounds. There are two trimpot controls that are accessible through the small holes on the top, a grit control that controls how much clipping occurs on the repeats and a sway control for some subtle LFO fluctuations. The arcade button lights up when the delay is activated and function as an instant feedback oscillation switch.
I designed the graphic in Inkscape and printed it at FedEx/Kinko's. I applied a thin layer of polyacrylic on the enclosure, laid the graphic on top, and rubbed the paper off with water after it dried. I think I found my new favorite way to apply graphics!
(https://i.imgur.com/YYEiXog.jpg)
(https://i.imgur.com/az9LNCO.jpg)
(https://i.imgur.com/ycaFSHg.jpg)
And here is the new build next to the original Sagan circuit. Thanks to the stacked boards, I can fit the new version in a 1590BB Tall and have board mounted pots!
(https://i.imgur.com/KZy5ihh.jpg)
Great 8)!
Wow that looks amazing!!
I would love a demo of it if you have the time! :)
That is sweet. You never ceases to amaze with your designs. Looks like a mini Sagan next to the other one.
Hopefully you'll be putting some boards up for sale in the future.
Looks awesome! You know I'm up for one when you decide to make these available
That is awesome, Chris! Great work on the revisions. Slightly confused about the graphics applications, though. You printed on regular paper (or glossy)? and sunk it into a coating of polyacrylic? Sounds neat but can't visualize it yet.
Marty
definitely want a demo ... definitely interested in this project
That's very cool, I love my first one.
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Both of those look awesome!
looks so nice! great design
is it two separate boards? i'd be interested in grabbing one also if they are around, got a whole swag of PT2399s sitting in archive mode
Wow nice work!! I'd be down for group buy if you do one.
Nice one! What kind of preamp did you do?
Quote from: Martan on April 12, 2018, 05:40:11 AM
That is awesome, Chris! Great work on the revisions. Slightly confused about the graphics applications, though. You printed on regular paper (or glossy)? and sunk it into a coating of polyacrylic? Sounds neat but can't visualize it yet.
Marty
Yes, plain copier paper. Flip your image, print, and lay it face down on the thin polyacrylic layer on the box. This smooth talking puppet should set you straight.
Quote from: oip on April 12, 2018, 04:29:11 PM
looks so nice! great design
is it two separate boards? i'd be interested in grabbing one also if they are around, got a whole swag of PT2399s sitting in archive mode
There are two stacked boards connected by female and male connectors. It was the only way to get rid of offboard wiring.
Quote from: JC103 on April 12, 2018, 04:58:01 PM
Nice one! What kind of preamp did you do?
I based the preamp off of the Nocturne Atomic Brain preamp, which is a not quite Roland RE301 preamp, but it does what I want it to. 10 o'clock on the pot is about unity, so things can get pretty loud.
Damn, that's awesome.
Awesome build, looks great!
I am wondering about one thing though. Your enclosure looks like a black prefinished type with a roughish surface, similar to the Hammond 1590BBBX--I don't know what the precise word is to describe the texture of the surface, but the Hammond is slightly rough. Is that right? If so, when you used that enclosure label technique, did you use it directly on the surface of that enclosure? Did it require any extra prepping? Or is the technique just super forgiving? I have a 1590BBBX and I wouldn't mind trying your method out.
LOL that video sounds like Mitch Hedberg
Holy Smokes this is awesome!!! I have so many of your PCBs that I need to build...Still I'll take 2 when they are available.
Quote from: ahiddentableau on April 13, 2018, 05:04:20 AM
Awesome build, looks great!
I am wondering about one thing though. Your enclosure looks like a black prefinished type with a roughish surface, similar to the Hammond 1590BBBX--I don't know what the precise word is to describe the texture of the surface, but the Hammond is slightly rough. Is that right? If so, when you used that enclosure label technique, did you use it directly on the surface of that enclosure? Did it require any extra prepping? Or is the technique just super forgiving? I have a 1590BBBX and I wouldn't mind trying your method out.
It was a bare enclosure that I sanded to get some of the blemishes out. After transferring the image and fixing a couple spots with a sharpie, I sprayed some more acrylic just on the top. When that dried, I covered the top and sprayed the sides with black hammertone spray paint.
Demo video is now on the initial post.
Nope, it doesn't work!
Quote from: Boba7 on April 16, 2018, 05:51:42 AM
Nope, it doesn't work!
I can view it in my browser now. Does it work for you?
Works for me. Sounds fantastic!
just WOW ! I need one !
It sounds awesome
Honestly I'm always really impressed with your builds, and in general with the builds on this forum.
When I see commercial delay pedals based on PT2399s I'm very rarely impressed, and I keep thinking of the ones I see here at Madbean's!! Like the new Gurus Amps delays, sorry I'm off topic, but it seems so crazy expensive compared to how it sounds (at least it looks good) and then I come here and I see your Sagan Delay 2.0, and I'm like totally blown away.
I hope you keep it up cause you're a huge source of inspiration for me!
I saw that dude do the wood one. He's a bit on the creepy side, but good stuff.
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What's the wood one?
By the way I would love to see a schematic for the Sagan 2 if it's possible /not too much to ask! :)
Quote from: Boba7 on April 18, 2018, 02:44:08 PM
What's the wood one?
By the way I would love to see a schematic for the Sagan 2 if it's possible /not too much to ask! :)
It's like the metal one except with wood.
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Quote from: Shaggy45 on April 13, 2018, 06:24:42 AM
LOL that video sounds like Mitch Hedberg
I used to transfer ink images to poly-based finishes with water. I still do but I used to, too.
I really like the finish on this. The pedal has such a vintage vibe about it. Bravo!
Quote from: Boba7 on April 18, 2018, 02:44:08 PM
What's the wood one?
By the way I would love to see a schematic for the Sagan 2 if it's possible /not too much to ask! :)
Sorry it took me a bit to get back to you. This is the most updated schematic I have. I seem to recall that I used 100n caps after the PT2399 switches before going into the saturation section. It probably doesn't matter too much. I also didn't add R53 in the LFO.
(https://i.imgur.com/PTXH9KY.png)
(https://i.imgur.com/DoQsZT0.png)
Video is awesome! This sounds really good. The missing preamps were the only thing lacking from the 1776 multiplex concept. Those Brain pres are pretty good sounding, well done. Let us know when this project is up for a group buy again.
Brilliant video and pedal :)
Is there any way to add a taptation input to this? Would it just be a case of feeding it into the ldr in place of the delay pot?
Found this thread only today, still have one pcb for sagan v1, but unfortunetly lack of time to assemble it or anything... but if you have any pcb for sale, let me know. One more delay to join the other 3 or 4 that built around years.
73's
certainly worthy of a group buy
Quote from: thesmokingman on October 21, 2019, 04:08:45 AM
certainly worthy of a group buy
You can put me down as interested as well. I've been long awaiting the day this beast gets released to the public and would love to build one!
Man... This is so cool. The sounds are great, love that paint job and the huge green LED