Category: Easy

Bespeco Weeper

For no apparent reason, here’s a vero layout for the Bespeco Weeper wah effect. I guess you could either set this up as a “fixed-wah” box or put it in a regular wah enclosure with foot-controlled pot.

Based on a schematic by Gottfried Divos, found here.


This effect apparently also go by a few other names with some slight modifications to the part values. I’ll see if I can add some more info on that tomorrow.

Update (23.06.2013): Substitutes you can make to create other similar effects:

Colorsound Wah-Wah Zvex Ooh-Wah
R2  330K 330K
R5  180K 180K
R7 180K 180K
R9 470 jumper
R10 33K 330K
R12 same 470K
C1 missing same
C3 100n 100n
C4 2n2 2n2
C5 6n8 10n
C6 15n 15n
C8 100n 100n
C9 2n2 2n2
Q1 ? (medium gain silicon NPN) MPSA18
Wah pot same LDR

Update (02.09.2013): Verified as working, thanks to Clint C.

Update (12.09.2013): Not sure what I was getting at about a cut underneath R10. No cut necessary and layout has been updated. Thanks To Olav for spotting this 😉

Updated: 12 September, 2013 — 22:45

Request: Suhr Riot, take 2

Apparently the Riot has been retraced and a new schematic has emerged with a few changes that might explain why the first one didn’t quite hit the mark. Hopefully this new schematic will be spot on.


Note that there are a number of small changes compared to the first one, and this vero is not interchangeable (cuts, jumpers and components have been moved).

Update (31.03.2013): Now verified as working, thanks to agung.

On a different note, most any general purpose silicon diodes would probably work fine as substitutes for the 51Y. Experiment with a few different ones or just pick the ones you have at hand.

Updated: 1 April, 2013 — 00:48

Relay switching using microcontroller

Today’s post is unfortunately going to be more of a tease than a practical layout.

I’ve been experimenting with programming micro controllers the last few days (AVRs to be specific) and I thought a good starting project would be to try operating a latching relay switching circuit with this instead of the CD4069. And hopefully the result will have a smaller dimension too.


Pretty basic stuff, I know, and I probably forgot something too, but I have breadboarded this and verified that the circuit and controller works.


I have yet to verify the actual vero layout though, but will probably do so pretty soon.

Now, I wish I could share this with you all, but even if I put up the AVR binary so you could download it there’s still the issue of having to program it onto the chip. I’m open to suggestions. If there’s any interest, let me know.

Update (01.04.2013): Works great 🙂

Update (11.10.2013): I know I promised this a long time ago, but better late than never. Here is the source code for the ATTiny85 micro controller used in this vero layout.


Now, this is meant for DIY-use only, no profiting! I’m not going to explain how you compile this and tank the micro, that’s totally outside the scope here. If there’s enough interest I might consider prep’ing some micro’s and mailing them out at cost. We’ll see.

Updated: 12 October, 2013 — 01:41

Request: Roger Mayer Octavia

Put together this one tonight on an impulse. I’m guessing this is pretty similar to the Tycobrahe Octavia. I’m thinking the diodes should probably be matched for best effect, and I’m unsure about the orientation of the drive pot so you might have to re-orient it (let me know and I’ll update the layout).


Update (15.01.2013): Already verified thanks to Alex. The drive pot was reversed, but the layout has been updated.

Updated: 15 January, 2013 — 11:16

Cornish SS-2

The schematic for this effect was recently posted on FSB and here’s a companion vero layout if you want to try it out. From what I hear the Cornish stuff is quite sought, not necessarily an indicator of quality of course 😉 Let me know if you build it and how you like it.


Update (20.01.2013): Now verified, thanks to Benno.

Updated: 20 January, 2013 — 16:43
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