Wogglebug circuit

keithwin · Joined: Jul 20, 2007 Posts: 83 Location: uk

Looking forward to my wogglebug PCB emensely,
anyone got any ideas for adding some LEDs to the
front panel?

Regards

Keith

endif · Joined: Jul 14, 2006 Posts: 138 Location: Reno, NV

I know I'm a noob. My snails pace at this Blacet VCO kit is testament to this.

What better way to de-noob than by having some go-to source when stuck that doesnt involve bugging anyone directly?

And I dont see how that's any different than, say, sharing suppliers or schematics.

Lastly, the idea itself comes from the excellent parts list for the Mankato filter, which is mostly Mouser part #'s with full descriptions, enabling those surmounting the learning curve to choose from the insane array of available components.

*shrug*

prophei · Posted: Mon Jul 30, 2007 5:24 pm Post subject:

poor endif... *snif*

Wink

do you need a hug?

Very Happy

blue hell · Posted: Wed Aug 08, 2007 3:52 pm Post subject:

Peake · Posted: Wed Aug 08, 2007 7:50 pm Post subject:

kryptic · Joined: Feb 16, 2007 Posts: 40 Location: somewhere

Peake · Posted: Thu Aug 09, 2007 11:50 am Post subject:

I believe a character defect has been revealed...thanks for the nudge, and the answer!

endif · Joined: Jul 14, 2006 Posts: 138 Location: Reno, NV

*squirms in his chair in anticipation*

=D

goldenechos · Posted: Mon Aug 13, 2007 10:31 am Post subject:

How about an ETA on the boards? I want to make sure I have some vactrols around when they arrive.

TR

stegoman

Hi Everyone. This is my first post to electro-music and to this forum, so thanks for putting up with me.

I've read everything in the forum and looked at all the working links. I'm considering getting in on the 2nd run of boards from Jan Van Holt and I'm curious if anyone has added the 'Disturb' input to the current board? It seems to be the only missing item compared to the original Wiard Woggle Bug first order circuit. (Referring to http://www.wiard.com/support/WoggleBug-031001.pdf ) Adding the ring mod/XOR circuit to interconnect 2 boards will be a snap, but it seems that the Disturb input would add some significant sound pounding options.

Larry T.

prophei · Posted: Fri Oct 05, 2007 5:38 pm Post subject:

i wish i had the answer! i was thinking about combining 2 of my boards as well, so i am very interested in any ways to further mimic the original....

vtl5c3 · Posted: Fri Oct 05, 2007 6:04 pm Post subject:

I've built two wogglebugs based on the #3 wogglebug circuit, the same thing the PCB that's being sold is based off of. I should point out that even without the Disturb feature, this module offers a great deal of options.

If you feel an overpowering need to add a Disturb option, I would recommend looking at Richard Brewster's site, since his version does include it:

http://www.pugix.com/wogglebug.htm

Looks like a small daughterboard with a quad opamp, some resistors and a few diodes connected to Pin 11 of the Woggle VCO will do the job. If you do try it out, let us know how it turns out!

Romeo

stegoman · Posted: Fri Oct 05, 2007 6:55 pm Post subject:

I've seen Richard's page and I'm thinking that it would be pretty easy to hack that change into the current offering. I was wondering if anyone else had already done something like this. BTW, Richard is a great guy and puts out great work. I was lucky enough to get one of his CVS boards and I can't wait to get going on it.

Master of Circles · Joined: Jun 27, 2007 Posts: 14 Location: Hamburg

Hi everybody,

I want to order the parts for my wogglebug, but I don´t know which Potentiometers I should buy.

Does anybody know if they are lin or log??

I refer to this PCB

http://diy.czmok.de/Group-Buys.66.0.html

Thanks in advance!

Master of circles

goldenechos · Posted: Fri Oct 26, 2007 10:59 am Post subject:

I used all linear and mine works great. Log pots are not as common around here and would have been noted in the parts list/ schematic.

Tony

prophei · Posted: Sat Oct 27, 2007 10:22 am Post subject:

vtl5c3 · Posted: Sat Oct 27, 2007 5:03 pm Post subject:

Hello,

I think you're referring to the woggle-wog.pdf diagram.

Pin 4 is V+ Pin 11 is V-. That's for a TL074 or most other quad opamps.

The other bit, regarding Pin 7 of the opamp going to the woggle-range pot... that's different from the wogglebug #3 because Richard figured out a way to add the Disturb feature. Remember that the #3 version was one of the prototypes that lead to the more fully featured version that Grant actually charges money for.

R.

prophei · Posted: Sat Oct 27, 2007 5:46 pm Post subject:

vtl5c3 · Posted: Sat Oct 27, 2007 6:53 pm Post subject:

OK, I didn't see that it was an LM324. You might want to check with Richard Brewster to see if he really intended to use it with a bipolar supply or if the negative rail designator is an error or should be ground.

LM324s can be used with bipolar supplies, but if I were you, I'd use a TL084 or 74 instead.

prophei · Posted: Sat Oct 27, 2007 7:19 pm Post subject:

Serenadi · Joined: Jul 03, 2007 Posts: 89 Location: Germany

stegoman · Posted: Tue Oct 30, 2007 11:16 am Post subject: Adding Disturb

I've just finished looking closely at the Disturb circuit on David's schematic (http://www.pugix.com/images/woggle-wog.pdf) versus the WoggleBug #3 circuit (http://diy.czmok.de/fileadmin/wogglebug-schem.pdf) for the current production board. David's disturb circuit can be done as a daughter board that hooks up to pin 3 of the "Smooth Range" pot instead of tying that pin to ground! If you look at the disturb circuit, it will be at ground if no input signals are supplied. Add 12 resistors, 1 pot, 2 diodes, and an IC. Or just use one disturb input and drop the pot and 4 resistors.

Question: How do you properly connect the unused section of the LM324 in order to prevent it's causing any issues?

prophei · Posted: Sat Nov 03, 2007 7:19 pm Post subject: Re: Adding Disturb

goldenechos · Posted: Sun Nov 04, 2007 5:46 am Post subject: Re: Adding Disturb