Messages

there's also the tap tempo tremolo built by david rolo using the taplfo chip

IIRC it uses an attiny85, you can get them from tayda for ~$2. You'll just need to programme it yourself.

He has the code on his site. I've had a look through it because I'm working on my on tap tempo phaser project... well I've been working on for well over a year and haven't got anywhere 'cause I keep getting distracted with other pedals...

Or you can buy it from here: http://www.sabrotone.com/?shopp_product=tap-tempo-lfo-v2-micro-controller-2

 Haberdasher

Sounds like modulation phaser style!

It sounds great! In the demos you can "select" the frequencies that are accented in the sweep.

I'm just playing around with phaser circuits and I came across a moogerfrooger schematic. I listened to a few demos and I love the sweep function. I'm thinking of implementing it on another phaser but I'm not 100% on what it actual does to the LFO and how it works.

From the manual :

SWEEP: Moves the frequency response pattern through a six-octave range. Use the SWEEP panel control and/or the SWEEP pedal control jack.

Any ideas on what the transistor and opamp do here?

Hmm, nothing too pedal related but I'll be blowing glass and working in the art gallery. While it's quiet in the gallery I'll be trying to teach myself french... I've put it off for years but I kinda need it living in a government city...

T1 doesn't seem to do anything... I can't give any help with the BBD part though... I've just started reading about them.

[hijack]

Hey,

Scruffie where's the best place to learn about BBD delays and their circuits? I have the basic knowledge and understand fuzzes and the like but I've got no idea about where to start. I'm an ECE student but I'm sure that BBD won't be covered in getting my degree...

Thanks for any tips

[/hijack]

Fantastic! I love it when I see something that isn't just a "tweaked fuzz" and is genuinely something different. 

Cool! I'm curious to hear what the Systech OD sounds like.

It's a overdrive pedal with an EQ that sounds very much like a wah. I have had a little fun will rotating the knob and playing with one hand to get almost a fuzz-wah sound. So in short it sounds like a cocked wah going into an overdrive.

My camera battery died while trying to do a demo the other day and I can't seem to find the charger... I'll try and get one up pretty soon though.

Very nice. Definitely interested in one of your spare Systech boards as that's been on my list of builds.


Sent from my iPad using Tapatalk

PM'd you

Rad! Out of curiosity, why did you decide to do the Percolator with turretboard?

Honestly, it was for M@J@ T0nz 

The idea was to build a Harmonic Percolator 2in1 pedal with separate in/outputs so it can be routed in multiple places on a pedalboard.

So the Systech OD half... I hate perfboard, stripboard... all of them... Since I couldn't find a PCB I decided to just make it. It's more time for me but it'll give a much better looking build. Here's the schematic drawn in Eagle:


I worked out a PCB layout. I have to boards left too if you don't want to make them yourself. They're designed to fit in a 1590A


Printed at OSH Park:


Filed the edges nice and smooth:


Partially populated:



I don't have many pics of the HP part but here it is with all it's mojo. It just needs a few more parts.


And the enclosure it will go in:




Drilling template attached


Drilled


Mockups double checking for clearance. Nothing is perfectly straight since I didn't tighten the parts down.




Nearly there, just needs the germanium soldered in for the percolator.



Finally done!

I was sent a knob less than I should have so it's got my tele knob on there until it arrives.   





The Systech Overdrive sounds fantastic! I'm building it off schematics I've found online so I'm going to compare it to some online demos and see if it needs any tweaks. But hey, I think I'm gonna build myself one exactly like this. I'll probably add an expression input for the EQ since it's very wah-like. If you want a cocked wah fuzz, this is it!

I'd avoid the water slide. The rough surface leaves bubble marks every where. Well the rough enclosures I got from mouser did.

I'm gonna start building myself a mu-tron ii phasor. I've got haberdasher to etch me a PCB.

I've found this doc: http://juansolo.demon.co.uk/stompage/schematics/Madbean/NuTR0nPhaser.pdf

It doesn't have part list... I know I can look through the schematic and make one but I feel like I'll miss something out and then have to do two parts orders.

It also doesn't have in formation about the LDR specs.

Could anybody help me out?

Thanks!