Dead Bug Module Cuz I'm a Cheap B@stard

Draal

I wanted to make use of some spare gates and a 4006 shift register I pulled from an old organ pcb but didn't have the funds to buy perf. A better way to put it is I'm tired of buying el cheapo perf that are prone to trace lifting or waiting a monthfor some offshore crap to arrive. As you can tell, I'm as impatient as I am cheap Laughing

!

Anyway, I remembered getting the impression that mosc had some experience in this style of building as well as Stan himself and thought, let's give it a go. Turned out to be a relaxing project and everything works fine and dandy.

I don't mind this method at all when there's no perf to spare.

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JingleJoe · Posted: Thu Jun 28, 2012 9:41 am Post subject:

Marvelous! Old school free forming is coming back into fashion Wink

I was going to ask for a circuit diagram but are the chips pretty much "bare"? If so can you give some hints as to how you have connected things here?

brock · Joined: May 26, 2011 Posts: 112 Location: Canada

Nice, but you'll like dead bug prototyping even more on copper clad board. It's very fast to build on and inherently low noise with the copper ground plane. Interesting timing as I decided to change my avatar to represent dead bug design.

Liked the R2D2 bit in the clip.

Draal · Posted: Thu Jun 28, 2012 11:25 am Post subject:

@JingleJoe - My lunettas are mostly chips naked with patch points for ins, clock, data, outs. A few chips like the pitch tracker are more involved w/caps, pots etc., but just about everything else is ol' school ins and outs to thee panel.
No real schematics to show other than the datasheets Very Happy

. My general principal is: outs can connect to the ins of others/don't put ins where there's an out.

For a melody gen for instance, I just use the 4017 and 4051 which aren't hardwired on my big lunetta and patch them. This takes the aid of a diagram when you are first learning it, but after a while, the patching gets easy. Best of all, I can tweak, add/subtract from any popular noise circuit since everything is patchable.

@brock - thanks for the tip; I'll look into it.

JingleJoe · Posted: Thu Jun 28, 2012 1:53 pm Post subject:

Gosh, that pitch tracker is the key to good noises! I need to build one, but first I must understand it better...
When I'm running low on stripboard I'll be sure to turn to this method, the merits are great Very Happy

nathanxl · Joined: Apr 24, 2012 Posts: 77 Location: Wa

attdestroyers · Joined: Mar 29, 2012 Posts: 47 Location: Malvern, Ohio

are those white caps from the organ too? Old organs are my favorite source of parts. Pretty cool stuff inside most of them... and people give them away. Cool build, nice sounds too.

Draal · Posted: Sat Jun 30, 2012 11:39 am Post subject:

@attdestroyers - Thanks! The white caps are huge 0.1uf Mallory bypass caps, often used in tube guitar amps, one of my other interests. I took them out of my Fender 5e3 clone to clear up the muddy bass and recycled them here.