madbeanpedals::forum

Projects => Tech Help - Projects Page => Topic started by: GhostofJohnToad on May 27, 2013, 12:09:21 AM

Title: Continuing Harbinger LFO issues -vibe stops when I use the speed knob.
Post by: GhostofJohnToad on May 27, 2013, 12:09:21 AM
So I thought I had my LFO issues sorted, but...  It sounds absolutely perfect - except whenever I adjust the speed knob it stops uni-vibing and I have to readjust the trim pots to get it back.  I'm losing my mind over this.  I checked all my solder joints and re-checked the wiring to the speed pot and all looks good.

For reference I am using the 9v version with power filtering.
Title: Re: Continuing Harbinger LFO issues -vibe stops when I use the speed knob.
Post by: madbean on May 27, 2013, 12:39:27 AM
Does it stop no matter what the adjustment is, or only at full clockwise or counter-clockwise?
Title: Re: Continuing Harbinger LFO issues -vibe stops when I use the speed knob.
Post by: GhostofJohnToad on May 27, 2013, 02:05:06 PM
The adjustment didn't matter.

I took out the led and jumpered and it works.  So either my leads or led was faulty.  That will be today's test.  Type of led for lfo should not matter, should it?
Title: Re: Continuing Harbinger LFO issues -vibe stops when I use the speed knob.
Post by: midwayfair on May 27, 2013, 02:27:16 PM
Quote from: GhostofJohnToad on May 27, 2013, 02:05:06 PM
The adjustment didn't matter.

I took out the led and jumpered and it works.  So either my leads or led was faulty.  That will be today's test.  Type of led for lfo should not matter, should it?

Yes, but does it stop if you go from, say, 33% to 66%.

I had a similar problem recently on a completely different type of LFO. There are other ways to wire up a rate LED fortunately.
Title: Re: Continuing Harbinger LFO issues -vibe stops when I use the speed knob.
Post by: GhostofJohnToad on May 27, 2013, 02:45:49 PM
Just any adjustment of the speed knob stops it.  Even a slight nudge.