NGD - Electro Harmonix Poly Chorus

[AntKnee]

This popped up and had to have it. I love the look of it. Sounds pretty good, too! It covers some real estate, though. I don't think it will be permanently on my board.

[Muadzin]

I've been GAS'ing for one for a while. I could use something to take care of my flanging/chorus/vibrato needs. I'm sorta thinking about the new one, as that takes up a lot less real estate. But I'm also sorta waiting for LectricFX to sort out their Echoflanger project.

[AntKnee]

I've been GAS'ing for one for a while. I could use something to take care of my flanging/chorus/vibrato needs. I'm sorta thinking about the new one, as that takes up a lot less real estate. But I'm also sorta waiting for LectricFX to sort out their Echoflanger project.

Yeah, the size is a bit of a pain. Thats a phase 90 on the right and a DL4 on the left, for reference. These are priced ridiculously on craigslist. I doubt they will ever sell for their asking prices. Are the new ones analog as well?

The "double track" setting on here is interesting. It can be used to get some interesting tones. This setting sounds really cool with my acoustic simulator.

I'll post a gut shot later on when I can open it up.

[jimilee]

That's really cool

[HamSandwich]

Fantastic pedal.

[AntKnee]

Here's some pedal porn, as promised. Lots of good stuff in here.
Its not as old as I expected.

[peAk]

I could have sworn Lectric was working on one of these?

[HamSandwich]

I could have sworn Lectric was working on one of these?

Indeed they are, but I believe they are retrofitting the SAD chip with a handful of MN3007's as per Nelson's old project from way back when. The reissue big box (and possibly the smaller one?) uses a 3008 and 3009. I haven't played this version, but I've heard it sounds significantly different from the SAD1024 ones. Maybe OP can give their opinion.

Still a great find there AnyKnee!

[Scruffie]

I could have sworn Lectric was working on one of these?

Indeed they are, but I believe they are retrofitting the SAD chip with a handful of MN3007's as per Nelson's old project from way back when. The reissue big box (and possibly the smaller one?) uses a 3008 and 3009. I haven't played this version, but I've heard it sounds significantly different from the SAD1024 ones. Maybe OP can give their opinion.

Still a great find there AnyKnee!

Yup we are and as HamSandwich says it'll use 2 x 3007 instead of the originals 2 x SAD1024, we just have a parasitic oscillation issue on our layout to work out so the project should be finished in a couple of months after prototypes.
Also just to say, thanks and hats off are deserved for Nelson for the ground work he laid with his original Echo flanger project and that our adaption is obviously similar in the fact it's an Echo Flanger and divides the clock for the second 3007 but ours does have quite a few changes and improvements (again hats off (I wear two hats at all times for these situations) to Armndry... or was it ~Arph for bringing the Jürgen Haible 'pot faker' mod to our attention which was an improvement over our original mod to remove the need for the C2M pot) plus the benefit of being compared to an original unit.

That's the big box reissue, if you're ever unsure which version you're looking at just look at the slide, the vintage units had a 'blend' slide (dry lift) and the reissues had 'sweep filter'.

I've not compared an original to the reissue but from the schematics I can't imagine they sound identical, but that don't mean they're not both good pedals.

[Govmnt_Lacky]

...but ours does have quite a few changes and improvements (again hats off (I wear two hats at all times for these situations) to Armndry... or was it ~Arph for bringing the Jürgen Haible 'pot faker' mod to our attention which was an improvement over our original mod to remove the need for the C2M pot)

When I built mine, I just needed to double the caps in the feedback from 50uF to 100uF (guessing on values... it was a while ago) and that allowed me to use the full range of a 1MC pot instead of the impossible to find 2MC 

[Scruffie]

...but ours does have quite a few changes and improvements (again hats off (I wear two hats at all times for these situations) to Armndry... or was it ~Arph for bringing the Jürgen Haible 'pot faker' mod to our attention which was an improvement over our original mod to remove the need for the C2M pot)

When I built mine, I just needed to double the caps in the feedback from 50uF to 100uF (guessing on values... it was a while ago) and that allowed me to use the full range of a 1MC pot instead of the impossible to find 2MC 

That doesn't work, that shifts the entire range of the LFO, so you were getting the second half of the 2MC basically, true you may have only been missing some of the faster stuff and pitch shifting speeds but still. With this mod we get the full range of the original 2MC pot (verified from fast to slow against an original by A/Bing and clock frequencies) with a C500k pot and get the correct 'spread'.

[Govmnt_Lacky]

Thats weird. It seemed to work fine for me though. Even compared it to an original EF that belonged to a local musician that I work with. Oh well... it's good to see that you have a solution... and with a C500K.

[thesameage]

I wish I had never sold my original! Well... it was probably a 2000 vintage, so not that old.

[Scruffie]

Thats weird. It seemed to work fine for me though. Even compared it to an original EF that belonged to a local musician that I work with. Oh well... it's good to see that you have a solution... and with a C500K.

Second half of the C2M isn't quite how it works but lots of people swap caps to change the rate range in mod pedals or add switches to do so, if just enlarging the LFO caps gave wider ranges we'd be using as big as caps as possible all the time for flangers and phasers. So yeah you'd be missing some of the slower and faster stuff, doesn't mean it was unusable or anything though (it clearly wasn't) just this way it's near exactly the same as if it used an actual C2M pot, sweep width and all at the cost of a little calculating and an extra resistor, the caps actually go down to 22uF.

But, enough derailing.