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Very cool, I love the idea of moving parts on my pedal controlling the effect... but this pedal does seem fragile and I'm already pretty fond of my modded EA trem.

A a proof of concept this this is awesome though, I can wait to see what you guys come up with.

Ok I finally got some time to rig up a beavis board(should have done this a year or two ago)  and I got some voltages.  Just, powered up(I'm not strumming any measuring or anything like that).  I'm not sure what all to look at... I'm a decent builder, but I don't really know the ins and outs of opamps and phasers.  I really would appreciate some help here though.

250K trimmer, 500KC pot. 

Here are my voltages.

Voltage to board = 9.16V

Q1
G: 0.43V
S: 3.47V
D: 3.63V

Q2
D: 3.63V
S: 3.56V
G: 0.43V

IC1
P1: 3.64V
P7: 3.47V

IC2
P1: 3.79V
P7: 4.71V


Here are a couple of photos, in case you guys have better eyes then I.





Please let me know if any of these voltages seem off, or if you see anything wrong on this board.

Thanks for the assistance guys.

(side note, my cave dweller and afterlife work perfectly... so there is that )

sigh... no time for trouble shooting tonight... but I appreciate the feedback....

baby board components are going to be a PITA identifying, especially all the caps... which pretty much look identical.

I'll let you guys know what I find, thanks again.

yeah, that means I have to etch a board for the jfet matching... I was hoping to avoid that by gettign matched fets....

any other suggestions?

Matched 2N5457 from small bear.  I actually ordered 50 so I could match them myself.. but due to the discontinuation of through hole jfets they said they could not fulfill my order... and offered me matched sets instead.

I did socket them.. .and I have one more matched set I could test.... assuming they were matched properly.

Not sure where to look but I just got my smoothie together, matched jfets and all.  Unfortunately I only get clean sound... that is, when the pedal is off, I get a clean signal... and when it is on... I still get sound... but no real phaser effect.

I'm hoping you guys can suggest what I should be looking at and or checking... usuallu if I have a problem it is I get no sound... not clean sound.

Hey guys, sorry for the cross-post but I built a power supply recently and it turned out really well.  I thought I would share it.

I'm using the weber "spider" transformer.  One AC primary, to 8 11v(200ma), and one 9v(2000ma) secondary.

My layout converts all the 11v, down to 9vDC, and the 9vAC goes straight to a jack. 

You could of course change the output by playing with the resistors on the LM317, and I believe with a large input cap, you could get 12v out.

All 9 outputs are super clean and super steady, no trimmer necessary... I can post more pictures here if you would like... and no, its no longer cased in a spongebob lunchbox

here is a link
http://www.diystompboxes.com/smfforum/index.php?topic=97482.60

DOH!  Yeah got it... awesome deal, just pickup up 10 myself, that should keep me for awhile!

I need a 30pf cap for my Runt build, but I cant find one anywhere?

Anyone know where to source one?  or can I just grab a 33/27 pf cap as a replacement?  If so should I go high or low?

I don't see the deal on the website?

Is there a coupon code?

Ian thanks for the feedback.  Can you explain the 1000uf caps in some designs?  I don't really have the space, and the 780x data sheet suggest tiny caps 1 if on the supply side and .3uf on the jack side.  I'll put thEm in m design if they are actually needed, but I don't see why they are.

Again I D thinking a 100uf and a 10uf, but even those seem like overkill for ripple protection

Hey guys I'm working on a power supply myself right now I though I would share.  I'm using the weber transformer listed in the spyder docs.  If you guys have any feedback let me know, I can tweak it.  It should produce.

• 8 9v DC outs up to 300ma
• 1 9 v AC out up to 2A
• All outputs are completely isolated

I have the transformer, I just need a few more 7809s.

Circuit


Layout(already mirrored for etching)


I have to ask, what is the rationale behind putting a 1000 uf cap in each circuit?  It was suggested to me on another forum, and I see it here as well, but the 780* datasheet suggests .33 and .1 uf.  I provided space for a 220, and a 100 max.  I am planning on a 100, and 10... these should be plenty big for ripple protection right?

Oh yeah I want one of these too.