Need a help about Echo and Reverb circuit!

hoangnguyen · Mar 9, 2008

I have to do a project about Echo and Reverb circuit for a Mixer with 2 line in for 2 micro but i have nothing knowledege about it
I need a help
Please help me
( I'm a Vietnamese so my English is not so good)

audioguru · Mar 9, 2008

Books will show you how echo and reverb circuits were made many years ago.
Modern circuits digitize the audio and use digital signal processing with a memory.

hoangnguyen · Mar 9, 2008

Can u give me some circuit

Hero999 · Mar 10, 2008

A Google for 'Echo IC' came up with a part (PT2390) that will do the job in a couple of miniutes.

https://www.google.com/search?client=opera&rls=en&q=Echo+IC&sourceid=opera&ie=utf-8&oe=utf-8

The circuit can be found on the datasheet.

https://www.ortodoxism.ro/datasheets/PrincetonTechnologyCorporation/mXyyzyzt.pdf

hoangnguyen · Mar 10, 2008

Thank u very much
I'll read it and try to searching something on Internet

audioguru · Mar 10, 2008

It looks like a pretty good echo IC.

Nigel Goodwin · Mar 10, 2008

audioguru said:
It looks like a pretty good echo IC.

But is it easily available?.

audioguru · Mar 10, 2008

You might need to go to Taiwan to buy the echo IC.

Gayan Soyza · Mar 12, 2008

I use MN 3102 clock generator with MN 3207 stage driver feeding to an OP AMP.

hoangnguyen · Mar 12, 2008

Gayan Soyza said:
I use MN 3102 clock generator with MN 3207 stage driver feeding to an OP AMP.

OH! Can you show me yours circuit's shematic
Thanks

Gayan Soyza · Mar 12, 2008

For the time being I don't have the diagram right now but I will scan I give you.

Nigel Goodwin · Mar 12, 2008

Gayan Soyza said:
I use MN 3102 clock generator with MN 3207 stage driver feeding to an OP AMP.

Can you still get the chips?, aren't they long obselete BBD chips?.

Gayan Soyza · Mar 12, 2008

I think you can find them in some stores.I bought them in last year.That MN couple pair was 2$.
Its worthwhile having such a one even it is old

hoangnguyen · Mar 12, 2008

Gayan Soyza said:
For the time being I don't have the diagram right now but I will scan I give you.

Thank!
Please give it to me as soon as you have it
I need it for my project

Need a help about Echo and Reverb circuit!

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