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John Hollis Ultra Flanger

11/27/2005 4:04 AM
Ed	John Hollis Ultra Flanger I just finished building the Ultra Flanger pedal, using the schematic and PCB at geofex.com (http://www.geofex.com/PCB_layouts/Layouts/ultrafln.pdf). The pedal works brilliantly apart from a clicking noise in time with the LFO. I decided to have a look and found that there had been a similar problem with the Zombie Chorus pedal which John had designed, there is a post in the hammer.ampage.org list (http://ampage.org/cgi-bin/hammer/index.cgi?cmd=lt&xid=&fid=&ex=&pg=3) about fixing this but no mention of the problem with the Ultra Flanger. I have tried debugging it using the same method as with the zombie chorus with two pots, but the clicking can't be improved. Does anybody have any suggestions or idea? Many Thanks.

11/27/2005 4:04 AM

John Hollis Ultra Flanger

I just finished building the Ultra Flanger pedal, using the schematic and PCB at geofex.com (http://www.geofex.com/PCB_layouts/Layouts/ultrafln.pdf). The pedal works brilliantly apart from a clicking noise in time with the LFO. I decided to have a look and found that there had been a similar problem with the Zombie Chorus pedal which John had designed, there is a post in the hammer.ampage.org list (http://ampage.org/cgi-bin/hammer/index.cgi?cmd=lt&xid=&fid=&ex=&pg=3) about fixing this but no mention of the problem with the Ultra Flanger.

I have tried debugging it using the same method as with the zombie chorus with two pots, but the clicking can't be improved.

Does anybody have any suggestions or idea?

Many Thanks.

Replies:

Mark Hammer The issue of ticking LFOs is one th... -- 11/27/2005 10:11 AM