Phaser build

[mjg]

This is based on the Mu-Tron Phasor II circuit, with a few more options to vary the sound.  I've put in two rotary switches, which let you vary the number of stages in the phaser from 3 to 8, and change the tone capacitors of the first four stages.  Also a 'slow' switch to really drop the speed of the phasing, and a relay bypass. 

For something different on the enclosure, I've used the drill press with a depth stop, and drilled a pattern using different drill bit sizes. It was a bit nerve racking with the larger bits, as I thought it might punch through the metal completely, but it worked out pretty nicely in the end.

Stamped lettering, which got a bit hairy near the edges, where I didn't support the enclosure underneath properly.  It ended up bending then tearing the aluminium, and I had to hammer it back into shape.  Whoops.  Doesn't show with a bit of a sand, thankfully.

[TFZ]

Love the drill pattern finish, cool stuff! Also a big fan of stamped letters, just a nice simple, rough look .

[Timko]

What do those 2 knobs in the enclosure do?

[DLW]

Simple elegance. Good job on this! Got a demo clip?

[jimilee]

Phasor!!!


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[Aleph Null]

The drilled design looks great. Reminds me of crop circles, which seems appropriate for a phasor. Also digging the octagonal enclosure.

[mjg]

Thanks guys,

The two knobs inside the enclosure are covering the LED and LDRs.  They were just the right size to use as covers. 

I'll hopefully have a demo video done later in the week. 

I have 4 or 5 of these boards spare, which I'll stick in the Buy/Sell area sometime soon.
 

[gordo]

That is too cool.  What a great idea!

[matmosphere]

Love it. Very cool, creative idea.

I've been teaching a unit on quadratics in algebra lately. This build is on point with that.

[selfdestroyer]

That is AWESOME!

[mjg]

Here's a video demo.

https://graybloomfield.com/guitar/play/pew.mp4

[mjg]

Love it. Very cool, creative idea.

I've been teaching a unit on quadratics in algebra lately. This build is on point with that.

I think I used y = x^2 / 2, or something similar to map out the holes. 

[Leevibe]

That drilling idea is totally genius. Nice job!!!

[Betty Wont]

I'd be into building this version. The II is my favorite.

[mjg]

I'd be into building this version. The II is my favorite.

I've added the spare boards to my Buy/Sell thread.  Thanks!

http://www.madbeanpedals.com/forum/index.php?topic=29058.msg287381#new