have not tried it- came home late today + bathe daughter + tuition = will try during weekend
You are a good father
btw here is something i found .....
This fella uses 9v
AC and its pumped to 30vdc.
psionicaudio.com - triad features - overview 1
The Triad started out because U2 fans were nuts about the preamp in the old Korg SDD-3000 delay, but the Korgs were 20+ years old, unreliable, noisy, non-MIDI, and going for over $900. So I decided to try a pedal-only version of the preamp, figuring that it could be used with a more modern quiet modulated digital delay with MIDI, at a much lower cost.
So I compared several SDD-3K schematics and took apart a good sounding SDD-3K and isolated the analog preamp. Then I drew that up, then looked for areas of improvement that wouldn't alter the fundamental tone. Better ground path, isolating audio ground from power ground, higher quality compoents, etc.
The next big thing was the power circuit. The SDD-3K uses a TL072 and a 4558, but it runs them at 30vdc rail to rail, for reasonably low noise.
I tried 9vdc and 12vdc supplies and it was just too noisy. I tried a slew of other opamps, and the noise came down but the sound changed too much. I tried 18vdc rail to rail and the sound was better, but still a bit noisy and the current needs of the circuit were pushing the limits of what a voltage pump can do.
So I was left with getting 30vdc rail to rail. In a pedal. Without an expensive hard to come by supply. So I used a voltage doubler based on a publicly available Rane schematic. So now 9vac gives me a well regulated and filtered 30vdc rail to rail supply.
But that power supply is relatively huge - about half the board of the current Triad is this power supply.
Knowing that people didn't want a huge box with just one footswitch and one knob, I looked at how I could justify the size and give people more value for their money.
So a footswitchable boost was the first answer (the current Boost 2). Then I realized that the second gain stage of the preamp was really an unused mix circuit, so I added the series/parallel loop, which could also be a second boost stage if you use a straight cable instead of an effect (the current FX/Boost 1 switch).
As the output of the preamp itself is really freaking hot (up to 50dB of gain) I knew that most digital pedals would clip after the Triad, so I put in the Send and (makeup) Gain controls, treating the loop like a studio console Aux send/return.
So now I had a preamp, a series/parallel loop (first on the market for a guitar pedal that I know of, though Xotic came out with their standalone parallel loop device shortly afterwards), and a boost section. Three functions, hence the name Triad.
The boost sounded great with Voxes and Marshalls, but could get a little fizzy with Fenders, so I added a Tone control that was only active when Boost 2 is engaged, and the Tone is out of the circuit when fully clockwise. Turning it down just takes off the fizz and pick attack - very useful and musical without being a drastic change.
Now, for those thinking "he just cloned the SDD-3K?" I'd like to point out that I made several changes to the stock circuit which made it a much quieter much more flexible circuit, with the additions of the loop and the second variable boost stage. So the Triad can do what the SDD-3K does, but it also can do a lot the SDD-3K can't.
As I had the 9VAC supply coming in, I put in a courtesy 9VDC output jack so anyone using the Triad could also use it as a power supply for most common pedals. This works nicely, though with any daisy chain setup one can get groundloops. That's out of my control, but many clients use it with no issues. For those who get loops, well, it's a courtesy feature, but a separate supply with isolated outs is obviously better if you can swing it.
As of Nov of last year I changed to using relays for switching, which gives much quieter switching and lets me use more reliable SPDT footswitches. And as of this month all future Triads will also have a DIN jack on the side which will allow remote switching of those relays, so anyone who wants to put the Triad on a rack shelf can access all three functions remotely (no need to just choose one mode and stick it in a TB rack loop switcher).
For those who think the price is high, it's a military spec board using very high quality parts, with a component count much higher than any non-digital pedal I've ever seen (each is like building a small amp), in a custom 18AWG steel enclosure with industrial powdercoating and silkscreening. My parts cost per pedal is very high, as is the time required to assemble it (I'm not just the president - I'm also the assembly line and the janitor).
Is it worth it? I get emails like this a lot:
"This thing has become indispensable to me - it's always on and has really become part of my tone.. I recently picked up a Grey panel 65' AC-30 and my normal channel loves to be juiced up with it."
And yes, you can use a Triad with a good modern delay in the loop and get the exact sound of the old SDD-3K, only without the noise, with MIDI, and with the knowledge that it will work every night.
Lyle
Psionic Audio