Fingolfen
Well-known member
I've been on a bit of a modulation kick lately, and I'd done a fair number of Earthquaker devices clones recently as well - so this sort of combines both of those worlds. I'd also messed around with the "real thing" at my local guitar store, and thought it would be a fun build - plus it will give me the opportunity to take my build and compare it next time I'm by!
For this build I started with the excellent PedalPCB Sea Horse board. As with all PedalPCB boards, its tight, yet incredibly well laid out. In order to fit the pedal neatly into a 125B enclosure the layout calls for 1/8W resistors rather than the more typical 1/4W resistors. I ended up using Yageo 1/6W resistors rather than the 1/8W resistors as they are the same size (3.4mm) and the leads were a little more substantial. Almost all of the film caps are WIMA, though there is one Panasonic as well. The electrolytic capacitors are all WIMA. The layout includes three fairly substantial integrated circuits -including a PT2399 delay chip which is the primary modulation chip. All of these have been socketed.
In order to accommodate the enclosure art, I decided to move the LED from its normal position on the main PCB right above the daughter board connectors to a position to the left of the stomp switch (viewed from the top). All of the potentiometers, especially the three that can easily come in contact with the PCB itself, have dust covers. The main PCB is attached to the daughter board with a ribbon cable, and all of the jack connections are insulated with heat-shrink tubing.
In keeping with the "Under the Sea" theme, the pedal features an aquatic dinosaur - the Kronosaurus. I found some decent licensable art online and combined the dinosaur (getting ready to snack on a couple of nautilus) with a suitable undersea backdrop and graphics. In terms of the sound, it matches the demos I've seen online of the pedal. It's a fairly complex pedal because of all of the different controls, but it certainly gives you a lot more options than you get from a typical chorus pedal
A little bit more at the blog: https://steggostudios.blogspot.com/2023/03/under-sea-cloning-quirky-eqd-sea-machine.html
For this build I started with the excellent PedalPCB Sea Horse board. As with all PedalPCB boards, its tight, yet incredibly well laid out. In order to fit the pedal neatly into a 125B enclosure the layout calls for 1/8W resistors rather than the more typical 1/4W resistors. I ended up using Yageo 1/6W resistors rather than the 1/8W resistors as they are the same size (3.4mm) and the leads were a little more substantial. Almost all of the film caps are WIMA, though there is one Panasonic as well. The electrolytic capacitors are all WIMA. The layout includes three fairly substantial integrated circuits -including a PT2399 delay chip which is the primary modulation chip. All of these have been socketed.
In order to accommodate the enclosure art, I decided to move the LED from its normal position on the main PCB right above the daughter board connectors to a position to the left of the stomp switch (viewed from the top). All of the potentiometers, especially the three that can easily come in contact with the PCB itself, have dust covers. The main PCB is attached to the daughter board with a ribbon cable, and all of the jack connections are insulated with heat-shrink tubing.
In keeping with the "Under the Sea" theme, the pedal features an aquatic dinosaur - the Kronosaurus. I found some decent licensable art online and combined the dinosaur (getting ready to snack on a couple of nautilus) with a suitable undersea backdrop and graphics. In terms of the sound, it matches the demos I've seen online of the pedal. It's a fairly complex pedal because of all of the different controls, but it certainly gives you a lot more options than you get from a typical chorus pedal
A little bit more at the blog: https://steggostudios.blogspot.com/2023/03/under-sea-cloning-quirky-eqd-sea-machine.html