Build Your Own Clone Message Board

congrats to our neighbors up north! 4th place is all we could do
at least our U17 soccer team does not suck.

Thanks for all the layouts, Sir

It's good to see adi back ! I hope the move to Switzerland was not too stressful.

I've missed out the Gargler and Gargletron circuits for the moment as they are more like full blown circuits and not snippets. I'll do these two at the end.

Today's is the Ghost Dance:





At a massive 17 cuts and 10 jumpers, here's the reverse side:

The Harmonic Jerkulator:





Four cuts and three jumpers.

http://www.home-wrecker.com/harmonic.html might make for interesting reading.

Four cuts and two jumpers

Six cuts and four jumpers.

The primary side of the transformer is usually marked - this is the left hand side of the circuit board.
The centre tap (middle wire) of the primary side doesn't connect to the board. The centre tap of the secondary side connects to e12 or f12.

There are some sound clips for this circuit at:

http://www.home-wrecker.com/salvo.html

Today's circuit:





There are two jumpers and seven cuts that are so well hidden, I've included the reverse side:

That Jawari circuit seems awesome. Thanks for all these layouts!

Protip for the Lofomofo circuit:
Play through it with an acoustic guitar! The e and B strings get totally funky sounding. Kinda sitar/banjoish but much uglier (in a good way, of course).

I'm thinking about building this and have a few questions before I commit. I think the answer to the first two is "yes"
1) I don't have any 500K resistors on hand. Would 510K be a decent substitute?
2) S2 goes to ground, right?
3) Anybody got sound samples? Would this basically be like a stuck wah?
4) Supposing I wanted the Resonance control to be on a pot instead of a toggle, would that work? Lug 3 to C2/220pF, lugs 1 & 2 to ground? Any suggestions on a pot value for this?

Thanks!

1) Yes - you would need the ears of a bat to notice the difference.
2) Yes
3) http://www.home-wrecker.com/salvo.html Using either a LFO or rocker type pot for VR. If you use a normal pot then, yes a stuck wah.
4) Yes and yes. Suggestions:

The 220pF capacitor would need to be increased for a pot to make a noticeable difference. I would suggest the following:

Socket the 220pF capacitor and the 680pF capacitor.
Change the 220pF capacitor to 1nF and replace S1 with a 250 kΩ pot, you could try a 470 kΩ pot, but the 250 kΩ should give better results.
Install the 680pF capacitor - to shift the wah sound towards bass, increase the capacitor, likewise to shift towards higher frequencies make the 680pF capacitor smaller.

Please remember, I'm doing these calculations in my head - the above values should get you somwhere in the right area, but be prepared to change the 220pF and 680pF capacitors and the resonance pot to get good results.

If you build this circuit and get good/bad results, it would be very helpful to other forum members if you post your findings.

Thanks for the quick info, tonmann. If/when I build this, I'll be sure to post back with results.

Five cuts (one of them at f9) and two jumpers.

Two quick circuits for today:





Two cuts and one jumper.





Five cuts and three jumpers

Man, seriously, thank you for these!!!

I don't know when I will get around to building these, but I will build them and use these layouts with much gratitude.

Just to say that I built this one today from the schemo and its quite nice, I may use it as a booster for a fuzz. Cheers TM!

Cool. I am looking to do a Booster for a fuzz as well. I am going to enclose them in the same box, with two foot switches, and another switch to change the order of the effects. I was planning on doing an LPB-1 clone for that, but this one is much simpler. How much boost does it give? What Pot value did you use for yours? Thanks!

Its not particularly loud, but it is quite clean which is nice. I'd think the LPB will have a bit more output? As per the schemo its a 1M pot on the input.

I originally intended to do one circuit per day - alas, the devil farts in my face once again and good honest work gets in the way of achieving my goal. I will contine with "Circuit Snippets" in 2010.


I've had a quick look at the circuit (Boost-O-Rama B) and would suggest changing the 1 MΩ pot to 100 kΩ and the 220 kΩ resistor to 22 kΩ to give more boost

First of all a Happy New Year to all !!!

Today's offering is the Octup Blender:



Generally speaking, anything more than 2 op amps on a vero board causes a lot of headaches - the size of the board being the main one. I decided to mod this circuit slightly in that I used a quad op amp (TL074) instead of three single op amps. There are actually a couple of benefits; the board is kept to a reasonable size (it will fit into a "B" box) and the unused op amp provides a good low impedance bias voltage (Vr). So hopefully Mr Escobedo won't mind my Octup Blender #2:





As there are seventeen cuts and ten jumpers, here's the reverse side of the board:

Today's circuit:





At fourteen cuts and five jumpers



I took about fifteen minutes longer for this circuit as I was trying to squeeze the board down to 19 holes - which is about the maximum comfortable size for a European style "B" type box.
I suddenly realised - "How do you get six pots, two jacks, a footswitch and a battery into a B type box ?"

Hats off to anybody who can manage it !!!

Today's circuit is the Photon Filter, which has already been perf-boarded by ckyvick and is lying somewhere here in the vault.





Nine cuts and four jumpers.

Now that my worload has eased off (and hopefully stays that way) I can start catching up on a large backlog of projects, including these circuit snippets.





at seventeen cuts and eight jumpers, here's the reverse:



If you plan to add the auxilary input, you will need a mono jack socket with a break switch. In this case the connection from a1 goes to the switch contact and the tip of the socket goes to the 1MΩ pot, lug 3. If you decide not to have an aux input, the connection from a1 goes to the 1MΩ pot, lug 3.

Basically a sweep filter, (the frequency response looks like a pyramid), two basic mods come to mind - changing the 680pF capacitors (C6 & C7) to larger values (1nF looks good) will shift the frequency response towards the bass end of the spectrum and the output will have less treble content, likewise smaller values for C6 & C7 will shift the frequency response to the treble end of the spectrum. Changing the value of 2nF capacitor (C5) to something larger (e.g. 4.7nF) will flatten out the peak (slight gain reduction) so that the pyramid looks more like a molehill.

Based on this thread, I did end up building a variation of the LPB-1 to boost my fuzz in a double pedal. the LPB has plenty of cleanish boost on tap and came out just great. I think I will make a stand alone version of the LPB now. It is a better booster than I anticipated. Not quite as much boost as the confidence booster, but certainly much cleaner, and way more simple of a circuit to build without an IC involved. It is very similar to what you have here in this Boost-o-Rama circuit. I couldnt find an LPB-1 vero layout that worked for the component values I wanted to use, so I made my own layout just for shitz and giggles. I can post it if anyone needs it. But thanks to all the input from this thread. This discussion and all these vero layouts are very helpful. I am going to build the Harmonic Jerkulator next. Cheers!

Today's snippet is the Psychtar:





Note the centre tap on the primary side is not used.
Eleven cuts and seven jumpers.
The reverse: