Search found 16 matches

by michaelballard
12 Oct 2015, 20:33
Forum: Boutique Stompboxes dissected...
Topic: Catalinbread - Katzenkönig [traced]
Replies: 31
Views: 15996

Re: Catalinbread - Katzenkönig [traced]

Also built storyboardist's layout and it sounds good. There is a little hiss if turned all the way up, but it's to be expected as others have said. As a side note, I opened up a friend's production Katzenkonig. The actual trannies are BC550B, but I built mine with PN2222A's and it actually sounds a ...
by michaelballard
08 Mar 2014, 20:20
Forum: Boutique Stompboxes dissected...
Topic: Fuzzhugger - Algal Bloom [gut shot] [traced]
Replies: 55
Views: 20772

Re: Fuzzhugger - Algal Bloom [gut shot] [traced]

Well here's a start. I'll need to either desolder the pots for a better shot of the back layer, or trace it out and correct the schematic. More to come later.

Oh, and all the 100K pots are log taper.

Image
by michaelballard
07 Mar 2014, 17:38
Forum: Boutique Stompboxes dissected...
Topic: Fuzzhugger - Algal Bloom [gut shot] [traced]
Replies: 55
Views: 20772

Re: Fuzzhugger - Algal Bloom [gut shot] [traced]

I've got one laying around somewhere that I can take apart. IIRC, the trannies are 2N5089s, C3 is a 2.2uF (all the .1's are correct), starve is actually a 100K (weird value for a starve pot), and gain is a 500KB set up as an input level control. I'll grab some pics and resistor values when I get a c...
by michaelballard
22 Oct 2013, 15:32
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 177
Views: 71493

Re: Wampler Velvet Fuzz [traced]

Sorry, just added C20 to the post above. It's 47uF.

If we're good with the trace, I'm gonna put this thing back together and grab drain voltages - although I'm sure they're 4.5v since that "amp" stage is a PlexiDrive.
by michaelballard
22 Oct 2013, 15:08
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 177
Views: 71493

Re: Wampler Velvet Fuzz [traced]

So the JFET section is just a standard Plexi-Drive... Looking at the PlexiDrive schematic, the cascaded JFET stages are almost identical - except the "gain" pot is now "fuzz" and the "tone" pot is now "bright". Time to get out the breadboard out and get ready...
by michaelballard
22 Oct 2013, 15:02
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 177
Views: 71493

Re: Wampler Velvet Fuzz [traced]

Cap values -

C1 220uF
C2 100n
C3 4n7
C4 1n
C5 220n
C6 100n
C7 1uF
C8 470n
C9 100pF (I think - says WIMA 100/100 2.5%)
C10 220n
C11 10n
C12 100n
C13 2n2
C14 100pF (I think - says WIMA 100/100 2.5%)
C15 22n
C16 47uF
C17 100pF (I think - says WIMA 100/100 2.5%)
C18 1uF
C19 2n2
C20 47uF
by michaelballard
22 Oct 2013, 11:33
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 177
Views: 71493

Re: Wampler Velvet Fuzz [traced]

Nice work! I'll get the cap values and drain voltages sometime in the next day or two - been a busy work week.

I'm curious about the optoFETs as well - maybe a fancy way to prevent popping when switching between the two?
by michaelballard
21 Oct 2013, 21:55
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 177
Views: 71493

Re: Wampler Velvet Fuzz [traced]

Sure, just let me know what you need. I'll leave it apart until we have a good trace.
by michaelballard
21 Oct 2013, 01:59
Forum: Pedal Debugging & Troubleshooting Support
Topic: Klon wiring/debugging. aka I'm a total noob.
Replies: 10
Views: 5616

Re: Klon wiring/debugging. aka I'm a total noob.

Another good thing to have is a "test rig" with in/out jacks and power connected to a breadboard. It lets you test your builds before you box 'em up and have to desolder to troubleshoot. Here's mine - janky but it works. http://www.mikeballard.org/img/testrig.jpg Here's how to build an aud...
by michaelballard
20 Oct 2013, 22:35
Forum: Pedal Debugging & Troubleshooting Support
Topic: Klon wiring/debugging. aka I'm a total noob.
Replies: 10
Views: 5616

Re: Klon wiring/debugging. aka I'm a total noob.

If I may add something. I have very little activity on this forum, but I participate quite a bit on other DIY forums. Rather than putting this off, I would recommend making yourself an audio probe, getting out the schematic and tracing through the circuit starting at the input. This will give you an...
by michaelballard
20 Oct 2013, 20:15
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 177
Views: 71493

Re: Wampler Velvet Fuzz [traced]

I'll get the cap values up later - may have to do some desoldering to get to all of them.
by michaelballard
20 Oct 2013, 19:58
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 177
Views: 71493

Re: Wampler Velvet Fuzz [traced]

Here's a better front and back ...if this doesn't help, I have a 12MP camera I can try with.


Image
Image
by michaelballard
18 Oct 2013, 22:01
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 177
Views: 71493

Re: Wampler Velvet Fuzz [traced]

Yep, happy to. I'll get to it sometime this weekend. I wanted to re-solder those pots anyway. As it stands, with everything tightened up, the board-mount jacks don't perfectly line up with the holes in the enclosure, so it puts a bit more tension on the PCB than I'm comfortable with. Sounds fantasti...
by michaelballard
18 Oct 2013, 20:32
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 177
Views: 71493

Re: Wampler Velvet Fuzz [traced]

Here's a start. Forgive my lack of photography skills. I'll work on the cap values, since they're a bit hard to see. http://www.mikeballard.org/img/100_5747.JPG http://www.mikeballard.org/img/100_5748.JPG http://www.mikeballard.org/img/100_5749.JPG http://www.mikeballard.org/img/100_5750.JPG http://...
by michaelballard
18 Oct 2013, 19:22
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 177
Views: 71493

Re: Wampler Velvet Fuzz [traced]

Just picked up one of these. I'll get you guys some better shots up sometime over the weekend. The trannies are J201's but mine are actual TO-92 packaged rather than the SMD version. The white "ICs" are H11F3 optocouplers. The IC is an LM386.There also appears to be a 2N5089 that's part of...
by michaelballard
25 Jul 2012, 20:08
Forum: Ready-To-Build Effect Projects
Topic: One-Knob Silicon Fuzz - Universal Layout
Replies: 12
Views: 2054

Re: One-Knob Silicon Fuzz - Universal Layout

For anyone interested, I recently took apart a Black Arts Toneworks "Ritual" Fuzz. It's a little throatier and has a touch more low-end than the COKF. The values are same as the Colorsound except for the following:

R4 - 2.0K
C1 - 680n
C2 - 150p
C6 - 100u
Q1/Q2 - TP2222a