Recent Builds (1590A Analog Delay, Chorus, Spring Reverb & More)

[dan.schumaker]

Been a long time since I've posted a few of my builds... here is what I've been up to.

Hologram Mod - This is a dual BBD analog delay with modulation in a 1590A.  It took a few iterations to finally get right, but I'm happy with where I landed on this.  It has 600ms through 2 MN3005's, a charge pump to boost the internal voltage to +15v and a sweet sounding modulation section.  The majority of the circuit is SMD work on the bottom side of the board.  Thanks to Bio77 for the micro knobs on this one!


Cavalier Stereo - This is another one of those that took a few iterations, but still isn't 100% there.  This chorus pedal is based on the Arion SCH-1.  This was originally designed to be a stereo chorus in a 1590A (using a TRS jack), but I didn't take into account when using a non-TRS jack, the output signal being grounded... It works perfectly fine when using a TRS jack or when having two separate jacks for each output.  So I broke down and put it in a non-mini sized enclosure.  It works exactly as expected and sounds very lush.  The switch chooses if the second output jack is either an un-modulated signal or a chorus signal.


Cavalier 1590A - Since it was made for a 1590A enclosure, I was going to make it work in a 1590A.  I omitted the output for the stereo out, so it is the normal chorus out.  I added a few caps to a switch to add in three depth levels to the modulation.  Again, its a super lush chorus, and I really like having the tone control on this to help set the sound exactly where I need it to be.


Whirlpool - This is the first revision of a Spring Reverb pedal in a 1790NS enclosure.  This is using the Blue Accutronics reverb tank.  It is a very deep and lush sounding reverb, that fits perfectly on any pedalboard.  The second footswitch is to select between two different mix levels.  This is a really cool sounding reverb, something different than the Belton brick we all know.  My only problem with this was as soon as I ordered the board, I thought that I should have added a tremolo to it, making it like the back-end of a Blackface Fender...

Whirlpool Deluxe - ...So I added tremolo to it.  The Tremolo is based on the Shoot-the-Moon Tremolo, so it has a very solid sounding tremolo.  To add the trem, I omitted the dual mix selection.  These two effects work perfectly together, it is a really fun pedal to play around with.


Paladin - The Paladin is a Fuzz/Overdrive combo pedal.  This has a Tube Screamer Overdrive and a Germanium Fuzz Face in the same enclosure.  This is to emulate what Eric Johnson does on his pedalboard.  I have an order selector on here so you can put the Fuzz or the Tube Screamer first.  The Fuzz Face has a pickup simulator circuit in front of it so that it will play nicely when it has the TS in front of it.


Paradigm Shift - The Paradigm Shift is a tricked out Univibe style pedal.  This There are controls for Treble and Bass to adjust the high and low end of the signal, an overall level control so you don't have any volume drop.  The Mix control takes you from all-dry to all-wet vibrato signal.  This is a great sounding Vibe pedal.


Slingshot - The Slingshot is based on a FL-9 Flanger, but in a Mini sized enclosure.  This is a really cool and lush sounding Flanger pedal, with nice chorus sounds in here as well.  It definitely gives that movement and filtering that you expect in a Flanger.

Lodestone Delay - The Lodestone Delay is like the Hologram, but instead of BBD's, it has a PT2399 delay chip and modulation.  This is a really sweet sounding delay pedal, probably one of my favorite PT2399 circuits.  It is very warm and tape-like in its repeats, and the modulation sounds nice and lush. 

[zombie_rock123]

Woah. What a haul! Some epic builds there - specifically all of them. How did you UP your 1590A game, I didn't know it was possible! Lasering looking spiffy too, that Paradigm Shift 

[jimilee]

Fantastic as always, Dan.


Sent from my iPhone using Tapatalk

[Bio77]

Dude, your build reports don't disappoint! 

What is the second relay for in the Cavalier?

[jjjimi84]

My god this is incredible! I love watching the videos and hearing and seeing what you come up with! That univibe, pt2399 delay and flanger are just calling to me, seriously great stuff

[dan.schumaker]

Dude, your build reports don't disappoint! 

What is the second relay for in the Cavalier?

The second relay in the Cavalier is for the Stereo output switching.

[Bio77]

The second relay in the Cavalier is for the Stereo output switching.

Ah, okay. Are both relays controlled by the same pin on the MC?   

[dan.schumaker]

The second relay in the Cavalier is for the Stereo output switching.

Ah, okay. Are both relays controlled by the same pin on the MC?

That is correct!

[Bio77]

That's cool, I wouldn't have thought there was enough current for two.  This opens up some possibilities 

[soggybag]

Great work! That's amazing you crammed all of the BBD stuff and relay switching into a 1590A!

I like that Loadstone Delay. PT2399 delays can sound really. I like them better than my BBD delays (sacrillege I know). I have an Aquapus, and an Aqua Boy, but the Rebote 2.5 I built way back when sounds better to my ear. It has a little more noise but the longer delay time and the filtering makes me like it more than the others. 

[cooder]

Another truckload of Schutone brilliance! Excellent to the hilt.

[pickdropper]

Great stuff here, Dan.