I finally finished my VOS yesterday and have some questions.

1) I switched the LEDs to a purple & a pink one, I used the pink one as the power LED, it shined very bright when I was trying the VOS out yesterday, and today it’s dead, how come? I didn’t find any resistor in connection to it in the circuit diagram, should there be one?

2) When I turn the volume to maximum, the VOS really glitch out and make some pretty nice noises, but why? should it be that way? I’ve followed the new circuit diagram and also removed R1 as it was stated in another thread.

3) I’ve followed the new circuit diagram and changed the LFO section, but there’s no different in sound when the switch is in the middle or down (I think, I put the LFO switch horizontal and don’t remember if “down” was to the left or right), what should the swich do in the different positions?

1) The LEDs that come with the kit have integrated resistors in them… we should have put that in the circuit diagram, sorry about that.

2) The VOS is a non-linear, non-buffered beast, meaning that just about every knob affects every other parameter, including the volume knob. Maybe there’s a way to mod the circuit so that it will make those sounds at lower volume… not sure off the top of my head.

3) hmmm… did you get a 3 pole switch in your kit? We sent out a few 2-pole switches early on before updating the circuit diagram. There are some knob settings where the switch doesn’t do anything, like if the depth is all the way off. Maybe Travis will have some ideas on what’s going on. We’ll try to help you figure it out.

1) ok, how much resistance is there in those LEDs? i.e. what kind of resistor should I put with my own LEDs?

3) No, I used one of my own 3 pole switches, I got a 2 pole in the kit.. The one pole doesn’t do anything different to the middle pole no matter how much I change the knobs..

For the switch problem, just to verify, we were supposed to send you a single pole, double throw switch (spdt). So what you are calling a 3-pole switch, has 3 solder terminals, and only 2 switch positions, right?

If that isn’t the case, then you have a switch where, in the middle position, the middle solder terminal is not making a connection with either of the other two terminals – so it shouldn’t do anything at all. this effectively cuts out the lfo.

if you do have the right kind of switch, then there is a problem elsewhere. Try manuall connecting the LFO output to the CV1 and see if anything happens. the switch shoudl be turning that connection internally on and off. Also, make sure you try all of the lfo knob settings, as there’s some non-liniarity in the way they influence the lfo’s effect.

-Travis

1) resistor: Try a 1k Ohm resistor first. To get the brightest light without burning it out, I’d have to see the spec sheet and find out how much current it can handle. You probably know this, but you can calculate the current this way:

I = (9 – LED_forward_voltage_drop) / R

Ok, well I got a spdt switch with three switch positions so I guess I’ve done some faulty connection. What should the different switch settings do?

Also don’t forget the LED/resistance question, I rather want a different coloured LED.

oh, sorry thanks for the LED answear!

Alright, the middle position, like Travis said, should just cut out the LFO, which should be the same as one of the other positions. The switches we include (now) are SPDT’s, but only have 2 positions. I’m not 100% sure what the middle position on yours will do…

Do you get a difference between the two end switch positions? There should only be two positions that do much. Let us know if it doesn’t do anything, then the problem is prolly somewhere else.

ok, fine, then it’s allright! thought that there was some change on the third position also. Thanks for the quick answears!

Yeah, that third position would just disconnect the lfo completely.

Thanks. Hope you are having fun with the VoS. Would love feedback and suggestions.

-Travis