simple delay circuit

[michael_krell]

Does anyone know of a cheap IC that is still in circulation to use for a very simple digital delay circuit that will be good for up to 250ms?

[Paul Marossy]

There's a couple of analog delays that could fit the bill...

[michael_krell]

Wow, awesome website. This info should keep me busy for hours. However it still does not answer my question. Im building something for my senior project and it requires digital delay.

[Paul Marossy]

I am not aware of any simple DIY digital delays, but there might be some out there. Anyone else?

[Paul Marossy]

You could try this one: http://www.muzique.com/schem/dod908.zip
It's not exactly simple in my book, but...

EDIT -

Here'e another one: http://www.web-ee.com/Electronic-Projects/projects/digital_echo/index.shtml

You may be able to adapt the delay section from this page: http://sound.westhost.com/project26.htm

[Fret Wire]

If I understand you correctly, the Robote2 delay should fit the bill.
http://www.tonepad.com/project.asp?id=27

[Travis]

The rebote II is almost certainly your best bet for a small, simple delay.  It's a very nice little circuit.

[Paul Marossy]

Ah, I didn't know the Rebote was a digital delay. :oops:
Cool!  

And, isn't one of those Scott Schwartz delays based on a PT2399?

[Mark Hammer]

Yes, the PT-80 ( http://www.generalguitargadgets.com/diagrams/pt80schem.pdf ) uses a PT2399 chip for somewhere around 330ms delay.  The companding helps it to behave itself nicely.

[Paul Marossy]

Yeah, that's the one - the PT-80. That's the one I was thinking of.