madbeanpedals::forum

Projects => Tech Help - Projects Page => Topic started by: teknoman2 on February 04, 2014, 09:17:55 AM

Title: Emma Reezafratzitz schematic
Post by: teknoman2 on February 04, 2014, 09:17:55 AM
I just saw an old built post of Juansolo including Emma Reezafratzitz

http://www.madbeanpedals.com/forum/index.php?topic=12280.0

after a little net searching I found a schematic including bass & mid mod

http://img219.imageshack.us/img219/7998/emmareezafratzitz.jpg

I want to use true by pass switching  so if I omit the C20=150n and the R30=470k everything will be fine?

Also I ve red that this type of distortion makes a lot of noise which comes from the ic, so after an sneak peak on Juansolo built
I found this ebay seller for the 4069 ic.

http://www.ebay.com/itm/300936476763

Do you think will be worth building this one after those minor suggestions?
Title: Re: Emma Reezafratzitz schematic
Post by: teknoman2 on February 04, 2014, 11:38:22 PM
No one ever built or have any experience with this distortion?
Title: Re: Emma Reezafratzitz schematic
Post by: jubal81 on February 04, 2014, 11:54:52 PM
In three years I've seen maybe two build reports on it. It's not very popular, but I'm curious about it.
You can read the entry on Fred Briggs' blog:
http://revolutiondeux.blogspot.com/2009/03/emma-reezafratzitz.html
Title: Re: Emma Reezafratzitz schematic
Post by: teknoman2 on February 05, 2014, 12:13:06 AM
I knew you will be my only hope. ;)
I ve red Fred's blog and the FS thread and I noticed that everyone complain about the noise of this one.
Did you face any noise issues on your built?
Also I bought the same chip as your built hopping that I will minimize the noise effect
Thank you for your time and answer.
Title: Re: Emma Reezafratzitz schematic
Post by: marauder on February 05, 2014, 01:41:16 PM
I built one after john built his.  We tried a few of the 4069 ics, and an nxp hef4069ubp was the quietest.

It's still not silent, but no circuits using cmos inverters are. Definately worth a build, sounds great.
Title: Re: Emma Reezafratzitz schematic
Post by: teknoman2 on February 05, 2014, 01:43:34 PM
thanx mate for the feedback,
did you try any od those?
http://www.ebay.com/itm/300936476763

I am asking you cause I just bought them