Honey Special Fuzz.

[Mark Hammer]

So, 13 transistors in all?

Yes Sir. Lucky 13  . At first glace, I get the impression that 6 of them are for the fuzz.

Six transistors for a fuzz screams Superfuzz, although there are many variants of that same basic topology(same way there are a zillion Fuzz Face derivaties), and there is no reason why this couldn't be yet another....with a nifty twist.

[digi2t]

The pedal only has one knob, which is for volume. I'm thinking that the clone can probably support a fuzz intensity control, and maybe a phase rate control (if possible). Perhaps a tone control as well? Make the fuzz/direct switch a footswitch, and package the whole thing in a 1590DD.

Going to try and have all the components identified by the weekend.

[digi2t]

OK, step one, component identification, is complete. Here's the lay of the land;



Now on to tracing....

[Craiz]

Excellent work!

Man, I hope we can figure out a way to modulate the phasing.....mmmmmmm.......

[mth5044]

I'll be working on a schematic and PCB this weekend Thanks!!!!!!

[digi2t]

Here is the trace side, with the components drawn in;



Take note the the image is flipped up, and then mirrored. Makes it easier to visually transfer the component to the trace. At least for me...
All you have to do is take the first picture with all the components, turn it upside down, and everything falls into place. Should be easier to draw the schematic.

Hope it helps.

[mth5044]

Hope it helps

Hope it helps?! It is basically the schematic! I'm sure that took a lot of time and effort. Thank you!

[pinkjimiphoton]

awesome...AWESOME..

can't wait for the vero version!! <evil, evil grin>

[digi2t]

Hope it helps

Hope it helps?! It is basically the schematic! I'm sure that took a lot of time and effort. Thank you!

I've always believed that "Time and Effort" is usually qualified by the result. I tend to find that the more "time and effort" I put into something, the better (in most cases  ) the result.

Also, considering that I'm not the most gifted, brain-wise, in electronics, I find that I must contribute here in other ways. Hence, putting in some "time and effort" is not just for everyones benefit here, but for mine as well, when the wheel comes around, and my a$$ is in the sling. 

I've been looking at the layout somemore, and the SuperFuzz comparison is slowly falling by the way side. It looks to me like the fuzz section is only comprised of 4 trannies. Two for the gain, and two for the octave. The number 3 and 6 slot trannies akin to the SuperFuzz circuits seem to be AWOL. Also, I noticed at the input to the fuzz section, that the 22K resistor is before the 10uF cap. This resembles the Unicord SuperFuzz, which is opposite to the Univox layout. Don't know if it makes a difference, buts it's an interesting bit of pedal "chicken or egg" archeology  .

Another point, the octave section is basically the same as other SuperFuzz circuits, minus the 10K trimmer used in SuperFuzz's to balance the octave effect. Could be an easy addition here.

[artifus]

I've always believed that "Time and Effort" is usually qualified by the result. I tend to find that the more "time and effort" I put into something, the better (in most cases  ) the result.

time and effort - energy.

- very precious resources that are not so abundant to all.

[digi2t]

Just noticed that there is a resistor missing on the trace side picture.... DOAH!!!

Split the picture in quarters, in the upper left quadrant, smack dab in the middle. There are two bare pads, surrounded by 2 trannies, two 10uF caps, a 1M and 4.7K resistors. There is a 1M resistor missing between the pads here.

I'll update the image asap, I'm working night shifts right now.

Sorry folks 

[mth5044]

Hey Digi2t, could you let me know what wires go where? Thanks. Almost done with schematic!

[digi2t]

Hey Digi2t, could you let me know what wires go where? Thanks. Almost done with schematic!

That`s great dude. Did you catch my earlier post on the missing resistor? I`m working nights this weekend, but I`ll try and update the picture tomorrow.

I`ll draw out the wiring and try to post that tomorrow as well. If not tomorrow, Monday for sure.

I really appreciate you doing the schematic. Super kind of you. I hand drew it yesterday, it`ll be interesting to compare to yours. I`m going to start a vero layout in the next couple of weeks.

I`m still on the hunt for the inductors. I haven`t had a reply from one place that has them listed in their parts list. I did however pick up a capacitance/inductance meter from Ebay yesterday. I`m thinking that maybe we might be able to use a small audio transformer.

The quest continues.....

[mth5044]

I saw it, but I forgot about it haha. Thanks for the reminder. Hopefully our schematics will line up. I'm doing mine in Eagle and plan on making a PCB, probably 2 layer.

Perhaps for inductors we could roll our own with the small bear kit. There are 4H inductors on mouser, but they are 18$ each 

[digi2t]

OK, the 4 Henry inductor dilemma might be solved. Through my internet travels, I happened upon information on guitar Varitone construction. This led to discussions on using the primary side of audio transformers as inductors for the Varitone construction, which finally brought me this wonderful tidbit of info;

42TL022 1.5K Ohms .56 Henry
42TL021 4K Ohms 1.5 Henries
42TL018 7K Ohms 2.6 Henries
42TL019 10K Ohms 3.75 Henries
42TL025 17K Ohms 6.4 Henries
42TL017 20K Ohms 7.5 Henries

Looks like a close enough match on the 42TL019. Only $2.12 at Mouser  . Backorder until November though  . Oh wait! Smallbear has them as well, at $2.75.

Good thing I have a couple on hand. Got them for the Gemini III fuzz, which uses the primary as a pickup simulator. Had the solution sitting on my bench the whole time.

*EDIT* - I've updated the trace component picture to add the resistor, plus a couple of clarifications, and I've numbered the connection points. The updated picture might be a bit slow in appearing, so check back later if you don't see the wires numbered.

Here is the wiring diagram, the numbers correspond to the numbers on the trace component picture.

[digi2t]

ALERT ALERT!!!!

Thanks to some sharp eyes at the other forum, there was also an error in the traces of the PCB picture. Seems I got a bit carried away with the brush in Paint, and I inadvertantly connected two traces in the upper right hand corner. Right between the E, and the 47K resistor. It doesn't look like it in the full color pic's, but that's because a lead is hiding the cut. I should have double checked with the board itself. 

It now corrected, and updated. Correct version should appear shortly, though Photobucket is a bit slow.

SORRY!!

[Dirk_Hendrik]

Schem available at www.freestompboxes.org

free stompboxes . org that is. Is that rediculous block still there!? Oh wait! Let's say I'll change my footer if that block is removed

[digi2t]

Schem available at www.....org

free stompboxes . org that is. Is that rediculous block still there!? Oh wait! Let's say I'll change my footer if that block is removed

There are three corrections to be noted on Dirk's schematic;
C1 = 10uF
R5 = 2K2
R25 = 4K7

Everything else looks pretty good to me.

Here is the link to the file, with the corrections noted; http://www.aronnelson.com/gallery/main.php?g2_view=core.DownloadItem&g2_itemId=47784&g2_GALLERYSID=79514b38a1a42ecd957d9d55ad96a64f

[mth5044]

Nice schematic, Dirk! You beat me 

[slacker]

Interesting stuff. Don't know if it's been mentioned elsewhere but the stuff round T10 and T11 are sine wave LFOs, simulator says the T10 one is about 1Hz and the T11 one is 3ish. These then get mixed to give a semi random modulation waveform, you can sort of hear that in Dino's video. A quick and easy mod would be to lift R27 or R29 that would give you two speeds of straight sine wave modulation. The R30 and R31 resistors can be made a bit bigger or smaller to change the speed, you can't vary them much though or it stops oscillating. You'd possibly need a dual pot to keep then the both the same value or it might work just changing one of them.

The inductors appear to make a bandpass filter, basically a Wah.