New Looper Design

[puretube]

exact that`s the reason for using (crossfading) 2
(this was frowned upon, a short while back...)

[robbiemcm]

Wait.. am I reading this correctly? You have to mke it play first, and only then can you record. So you'd press play/record it starts playing, press again it starts recording, press again it stops recording and starts playing..?

[slacker]

Wait.. am I reading this correctly? You have to mke it play first, and only then can you record.

No you don't have to make it play first before you can record. When the effect is on, it either plays or records so if it's doing one and you press the play/record switch it does the other. If you want it to start recording without playing first, then you start with it bypassed which stops the unit doing anything, then you select record using the play/record switch. then press bypass to engage the effect and it starts recording, when you want to play press play/record again.
It basically works the same as the zvex loop junky.

[The Tone God]

exact that`s the reason for using (crossfading) 2
(this was frowned upon, a short while back...)

Well that adds a new level of complexity.

The IC does not respond instantly either so there would not a be a smooth time transistion processor to processor. It would eventually lead to weird time problems as oppossed to a smooth delay.

Andrew

[nelson]

exact that`s the reason for using (crossfading) 2
(this was frowned upon, a short while back...)

Well that adds a new level of complexity.

The IC does not respond instantly either so there would not a be a smooth time transistion processor to processor. It would eventually lead to weird time problems as oppossed to a smooth delay.

Andrew

Well mr almighty, alighten us with a new design.




If you deem us worthy to receive thy blessing.

[hank reynolds 3rd]

Miaow pussycats !!! 

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[hank reynolds 3rd]

dammit...that didn't work

[nelson]

Miaow pussycats !!! 

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[A.S.P.]

pimpin`ain`t easy...

[hank reynolds 3rd]

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[hank reynolds 3rd]

aaahh ,f**k it....

[A.S.P.]

?
is it it?
?

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parental advisory:  explicit picture!

replace the asterisk in the URL by a " u " ...  after accessing the page

[slacker]

you want stupid pictures? I'll give you something really stupid. 

yes kids an untested vero layout of the looperchip and switching system, I don't need no stinking PCBs 

[The Tone God]

I'll see your Rick James and raise you the big guy.



Don't fuzz with The Tone God!

Seriously I wish I had a design to offer but I don't nor any advice to help do what your asking. From the playing around I did with these ICs I don't belive it is possible to make some kind of decent delay out of it. Its just the wrong technology kind like the first Matrix...



Andrew

[nelson]

"Dont F*ck with the Jesus"


I love that movie.

[Jaicen_solo]

Hey slacker, you getting in on the action here?
Now I remember why I hate veroboard! I'll be knocking up a layout for your switching scheme soon.
I'm really seriously gonna build this soon, I promise.....(yeah yeah you say.. ).

[robbiemcm]

you want stupid pictures? I'll give you something really stupid. 

yes kids an untested vero layout of the looperchip and switching system, I don't need no stinking PCBs 

And we don't need no education, but overall it's better if we do have one.

[Jaicen_solo]

Hey guys, talk about bringing threads back from the dead!
I've been spurned into action today by the recent 4x15s looper project which was just posted. I've now got what I consider to be the definitive Lazarus Looper project ready to go, though I'd appreciate it getting the once over by those in the know (Slacker, i'm talking to you!).
The layout now includes the Schmitt switching system designed by slacker, as well as the LFO vibrato system i'd devised (read, copied from Tim's PWM design Thanks Tim ). I decided not to use the buffered effects loop, as it was taking up too much space for how useful it was. I figure anyone building this will have the skills to make an input/output buffer on a bit of perf or something. I think a round of applause is well deserved for the switching scheme, which is very elegantly done. I'm sure I would have come up with something far more complicated and less good. Big thanks also to Bill Bergman for the nice analogue design.

Anyway, as ever thoughts and opinions welcomed.

Oh, and the PCB artwork should print out at 4.4x2.7" @ 300dpi. (It's reversed ready for PnP).

[slacker]

Cool glad to see your looper's still alive. Thanks for the comments about my switching idea
I'll have a look at the PCB but it's not any area I'm too familar with, see the vero monster above
I really hope someone finally gets to build this.

[Jaicen_solo]

I think I was a bit hasty releasing that last layout, there are a few areas that needed to be changed.
I've taken out pretty much everything that doesn't need to be in there now to keep the PCB small. As I said before, it's only 4.4 x 2.7, which is small, but not BB small!
Anyway, i'm basically saying don't build this layout yet it's not finished!