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problems with ultraflanger....help.

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12/4/2002 1:57 PM
swt	problems with ultraflanger....help. Hi guys. It's my first attemp to build the ultraflanger, but got a problem. I have no sound, but a putt putt type. It's like motorboating...what can be the cause. How can i correct it?. Thanks a lot.

12/6/2002 9:16 PM
Doug H	Check with John: http://www.hollis.co.uk/john/circuits.html HTH, Doug

12/6/2002 11:37 PM
swt	correct it but... now it's oscillating. Any considerations?. I've build it in a perfboard.

12/12/2002 1:12 AM
paul	Re: problems with ultraflanger....help. i am also trying to make one of these. what are the numbers for the two op amps? u1 and u5? and where did you get the bbc chip mn3007 ? did you get yours to work? -paul

12/12/2002 8:58 PM
A Colman	Op amps are TL062s I think and the BBD chip can be bought at Small Bear Electronics.http://www.smallbearelec.com/ Be advised that the Ultra Flanger is prone to ticking,I built one and so did a few at Aron's and the results were similar. Regards\ Aharon

12/13/2002 3:01 PM
swt	i've tried tl072, jrc4558, rc4558, and none worked. The only one that makes the sweep, at the oscillator is the ne5532. But i still haven't tried the tl062. I have oscillations in the audio signal, and as other told you, it's also ticking. Will spend more time in the weekend trying to solve these items. I'll let you know.

12/13/2002 3:05 PM
mattv	Apparently, acccording to others who have posted on this subject, it is quite important to use the specified TL062 op-amps. I don't think I would spend much more time debugging it until I tried the 062's.

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