Echo Base - a new PT2399 delay

[gefi]

Hello
my english is not good and after reading the 45 pages I'm a little confused
This PCB is correct?

http://blogs.yahoo.co.jp/anonymousfacelesscoward/19192939.html

thanks

[slacker]

Hi

Yes that PCB is correct.

[Galego]

http://www.youtube.com/watch?v=EAp9nKNCuQs

This is not an echo base anymore, but it was based on it, using the PWM output of a PIC 16F684 instead of the LFO. Please let me know what you think, or any suggestions on how to improve it's functionality.

Brief explanation:
Left Led (red) - tempo indicator.
Red and Green led - binary sequence that shows the current mode selection:
00 - Tempo and Load preset 1
01 - multiplier and Load preset 2
10 - mod speed and Save preset 1
11 - mod depth and Save preset 2

One button is for tap tempo, the second cycles through the 4 modes, and the third saves or loads a preset depending on which mode is selected.
The values are changed with a rotary encoder. The other two knobs are for the delay feedback and level.

When the unit is turned on, it loads preset 1.

[slacker]

Looks interesting, nice work

[candletears7]

I just built mine up from Taylors PCB.
A big thank you to all involved, Slacker, Taylor. This is a great delay/modulation effect. Mine fired up first go, except for the fact that I had wired all pots in reverse, but 10 minutes later it was doing what it should. An excellent pedal! Cheers again!

[slacker]

Cheers

[phector2004]

Just out of curiosity, I can use a 1N5819 schottky as a protection diode, right?

or will bad things happen to me if I put in an opposite-polarity jack? 

[slacker]

Should be fine. Probably even better than a silicon, because of the lower forward drop of a Schottky.

[phector2004]

Nice. I can finally populate it

Thanks!

[azrael]

Hey, just getting onto the Echo Base boat here. I was reading through some of the older pages, but some links are broken. Anyone have the diagram for an effects loop on the Echo Base?

Also, is a dual PT2399 mod here possible? What about Tap Tempo? I understand the PTAP isn't being used any more, unfortunately...

[Barcode80]

Hey, just getting onto the Echo Base boat here. I was reading through some of the older pages, but some links are broken. Anyone have the diagram for an effects loop on the Echo Base?

Also, is a dual PT2399 mod here possible? What about Tap Tempo? I understand the PTAP isn't being used any more, unfortunately...

I'm not sure about the PT2399 double up but I think it was mentioned in this thread that it is possible. ALso, there is a kit Aron sells (STORE link at the top of the forum page) called Taptation which is a tap tempo add-on for PT2399 circuits.

[azrael]

I remember looking there before I bought a PCB from Taylor, and not seeing any.
Double checked just now, I don't see them in stock anymore.

[slacker]

There's a double time mod that me and Valoosj did, the discussion about it starts on page 8 of this thread, there's a schematic and a layout.

For info about fx loops have a look at my post here http://www.electro-music.com/forum/viewtopic.php?t=39579&postorder=asc&start=375

[Barcode80]

I remember looking there before I bought a PCB from Taylor, and not seeing any.
Double checked just now, I don't see them in stock anymore.

Yeah, for some reason it's not on there anymore. Odd.

[azrael]

Awesome, thanks slacker!

If only I could get tap tempo now haha...maybe someone has an extra board...

[Berger]

ran into a weird one today. I have an echobase build from taylor's pcb. I found out with the echobase off if I put my amp into standby mode and strum the guitar quick.
When I put the amp out of standby mode, the echobase generates white noise.
Until I unplug its power and plug it back in.
I'm guessing the issue is with the buffer...any one else run into this?

Aaron

[matej_mlody]

I would like download PCB from http://blogs.yahoo.co.jp/anonymousfacelesscoward/19192939.html but I can't save this PCB to ORYGINAL Size. How to download this pcb in PDF file ? ofcourse to oryginal and appropriate size for all elements. If someone give me this PDF I will be really grateful! Greetings

[Barcode80]

Those files don't come out of DIY layout creator with the correct sizing. Resize the layout to 200.25 dpi and it will print marvelously.

[deadastronaut]

this brings me to the question...

why do we always have to resize?....surely this breaks up/squares/pixelates the image,

or is it down to the author...hmmmmm.....you would think it was ready to print on a pdf eh?..

[Barcode80]

this brings me to the question...

why do we always have to resize?....surely this breaks up/squares/pixelates the image,

or is it down to the author...hmmmmm.....you would think it was ready to print on a pdf eh?..

1) it's a lot easier to code an export to gif than pdf.
2) when you resize to a smaller image, there is no pixelation. that's only going to happen when enlarging.

I personally use bullzip pdf printer to print a lot of my layout work straight to pdf from express, but that's a lot to expect of someone providing free layouts...

perhaps you are looking the gift horse in the mouth a bit?