Dual Seabed delay ?

[The Gator]

Anybody already make a dual Seabed delay already?
I was thinking after a gig last week that I would like two delay pedals on my gig pedal board. One for a good slapback, the other for longer, more saturated delay.
I could just make another magnetron. But then I thought about making a dual delay in one 1590BB2 would be great. Even more interesting would be a series/ parallel switch to get a little crazy with it.
I like the magnetron a lot. The Seabed seems similar but simpler. Smaller footprint and only 3 pots. 2 of them in a 1590BB2 might be pretty tight, but would save space on the pedalboard. Any thoughts would be appreciated.

 

[phi1]

Are you thinking 2x Seabed pcbs (probably only fits in 1590XX) or a custom pcb (could probably fit 2 seabed circuits in 1590BB).

Another way to tackle this could be in digital (FV-1, DaisySeed). I think with filtering inside the algorithms you can get very much in the ballpark of the magnetron or seabed. Pt2399 isn't really "analog delay" anyway so you aren't sacrificing that specialness. This would allow a row of knobs for each "preset", and you can switch between presets. Either in a 1590BB with 2 stomps (on/off, preset), or 125B with one stomp that cycles (off-mode1-mode2-off-etc.)

I'm getting up to speed on Daisy (used FV-1 forever but it's limited for this kind of thing). Others here are more advanced on Daisy, but I'd still be down to work together on a project like this.

 

[The Gator]

I like the simplicity of the seabed. Time, level and feedback. I know nothing about Daisyseed.not much about FV-1.
I would be awesome to have a custom board designed for a dual delay with a built in series/parallel switch. Not sure if there is enough interest for a circuit layout designer to invest the time?
I like the idea of series or parallel, and a footswitch for each circuit.

 

[phi1]

For parallel mode, you’d want the 2 different delays mixed together, right? I guess you could use Seabed pcbs and do a blender circuit, but that would result in 2x the dry signal in some cases (I think). Better to mix Dry + Wet + Wet all together at once (IC1.2 pin6).

IF you’re ok with Buffered bypass, then I think this could be done quite elegantly with 2 lightly modded Seabed pcbs, or a custom pcb that combines only the needed items.

Here’s a rough block diagram. The dry signal is always going thru both Op Amps, hence “buffered bypass”.

Edit - this schem won’t work because delay2 output feeds directly back into delay2 input

 

[phi1]

Alternately, the whole thing could probably be built on a Terrarium pcb with Daisy programming. The enclosure size would then just depend on how much foot space you want.

One drawback of the Terrarium PCB is the digital dry through. But, that could be bypassed with a small daughterboard incorporating an Op amp mixing stage (like all the ppcb FV-1 designs have). Not that I can hear that the Daisy is digital dry at all… just the principle of it.

 

[falco_femoralis]

I'm thinking of doing two of them in one enclosure for the same reason - two different delay times. The way my pedalboard is set up I'd put them in a 1590bx2, but for a normal kind of pedal, you could order a 1590q from hawk electronics and fit both boards into that. A 1590q is like a square 1590bb so you have space for the jacks and footswitches. You may be able to get them into a horizontal 1590bb but it might be tight. Check the measurements and see if you can fit it.

 

[phi1]

On second thought, that block diagram I posted wouldn’t work. I think this one would (still buffered bypass)