Echo Base - a new PT2399 delay

[deadastronaut]

heres mine if it helps. ^

[slacker]

That's a really nice demo Rob, thanks for doing that.

mr_deadmaxxx to get the chorus sounds delay time should be set very short, level should be turned up near maximum. Feedback and modulation controls set however you like.

[jan007magic]

do you guys have a PCB for this project? and maybe the parts are also placed? just like at generalguitargadgets?


please reply soon!

thank you!

[jefe]

http://www.aronnelson.com/gallery/main.php/v/barcode80/echobase.pdf.html

Click on "download document".

Hope this helps.

[slacker]

Thanks for that Jeff, don't think I've seen that pdf before.
If you want to buy a PCB rather than etch your own have a look here http://musicpcb.com/pcbs/echo-base-delay/

[jefe]

No problem, Ian.. I just found it while clicking back through this thread at random . 

[LaceSensor]

Happy belayed 4th bday

Can someone give a definitive way to implement an FX loop on the Taylor Music PCB board please?
Id be ever so grateful. Thanks!

[Barcode80]

Happy belayed 4th bday

Can someone give a definitive way to implement an FX loop on the Taylor Music PCB board please?
Id be ever so grateful. Thanks!

Where do you want to loop to enter? On the wet signal?

[LaceSensor]

I want it to effect the repeats (I think - building it for a mate, but that makes sense...)
So that if you plugged in a phaser for instance, it would get phased on the repeats..

[slacker]

You can do an effects loop by breaking the connection between the wiper and board of either the level or feedback pots and putting the the loop in there. If you use the level pot then every repeat will go through the loop once. If you use the feedback pot then the first repeat will be clean but every other repeat will go through the loop each time it repeats so every repeat gets more effected.
If you want every repeat to go through the loop and get more effected then you probably need to cut some traces and possibly add a buffer, there's a schematic showing how to do it somewhere in this thread, but I don't know where the relevant points are on Taylor's board.

[LaceSensor]

Like the sound of the level pot actually.
So the send is the board connection for wiper of the level pot to tip of a mono jack, and return would from tip of another jack socket to the lug 2 of the Level pot?

[squigglefunk]

here's an echobase I made with a photoeye mod

so far I'm quite happy with how it turned out. The echo base is a really nice sounding delay!

 I added the second footswitch which activates the photoeyes and LED antennae. The eye on the left controls delay time, the one on the right controls delay feedback.

Thanks so much to slacker for the design!!!

[deadastronaut]

^ nice build squiggle..

i mounted my ldrs in a different way...

i used a 5mm clear led, cut the legs off it, sanded the bottom of the led, then glued the ldr to the bottom of the led, then mounted in a 5mm bezel....works a treat and
looks like a standard led..just my 2p...

[slacker]

So the send is the board connection for wiper of the level pot to tip of a mono jack, and return would from tip of another jack socket to the lug 2 of the Level pot?

Yeah that's right with the connections except they're the other way round, Lug 2 is send and the board connection is return.

Amazing looking pedal squigglefunk.

[squigglefunk]

So the send is the board connection for wiper of the level pot to tip of a mono jack, and return would from tip of another jack socket to the lug 2 of the Level pot?

Yeah that's right with the connections except they're the other way round, Lug 2 is send and the board connection is return.

Amazing looking pedal squigglefunk.

thanks slacker , amazing sounding pedal too, thanks to you! I am gunna have to try the effects loop mod too! 

[LaceSensor]

When implementing the Dub Madness mod, does the 3rd lug of the feedback knob need to be connected to the board and then you additionally wire the throw of the SPST to it (to connect or disconnect the extra 27 k resistor)

OR simply the dont solder the 3rd pot lug in, and then run the wire to the board?

Also, do you still have to have the 20k resistor on the board for this mod? It isnt mentioned to remove it?

Hope that makes sense.

Thanks

Ian

[modallaire]

Here's a pic of my by build made with Taylor's pcb.  It sounds great.  Thanks Slacker for the great design.[img]http://farm7.static.flickr.com/6132/6205445293_e3a235f7f4_m.jpg/img]

However, I built a second pedal on veroboard with the new buffer as seen on page 57 and I am still in the debugging process.  Maybe someone can help me.  I first made the mistake of inverting the polarity and also putting the bypass 2 wire on the 9 volts rail (witch at this time was actually ground because of my previous mistake).  By then, I had a clean signal when bypassed but only ticking when engaged.  After measuring voltages around PT2399 and CD4066, I noticed I had negative voltages.  I corrected the wiring and changed both TL072(just in case).  Now there is only ticking on both bypass and engaged mode.  I measured the voltage again and it shows 0.6 volts across ground and +9 V.  (The pedal is powered by via an adapter so that's not the problem).

Does anyone see an obvious component that maybe fried, like D1 or something I should try first.

Thanks everyone,

Marc

[modallaire]

Damn, my cover is busted...I don't know how to put a picture in the post...  Lets try again.

[img]http://farm7.static.flickr.com/6144/6206057610_22e36118f0_m.jpg/img]
[img]http://www.flickr.com/photos/68194440@N03/6206057610/in/photostream/img]

How the H...does it work?  I can't preview the pic.

Marc

[Taylor]

Here you go - you're missing the "[" right before "/img" at the end.

[jplebre]

I been through all these posts (seriously!) and whilst I was getting really eager to build one with the momentary footswitch for tap one recent post said it was not possible anymore.
Why? any alternatives?

I think for @deadastronauts despair I'll abandon distortion for a bit. I'll come back for that mean beast you recommended though!