I still use this pedal and its sound has held up, even though it's not the sturdiest design. I like that one can pre-set a higher gain level for solos. I recall reading somewhere that the Aria DT-10 had a bit of cache because it used the same chip that is found in the Ibanez and Maxon distortion pedals from the 80's. Anyone here have more insight?

someone would have photos or scheme?
Fryer Mayhem Overdrive (Brian May)

thanks

Picked this up at Guitar Center over the weekend.

Great sounding dual channel overdrive/distortion.

Cracked it open tonight, here are some pictures. Anyone have any clue what it's based on?

If any of the pictures are unclear, or you need any of the numbers off parts, I can take it apart again. (Please excuse the terrible quality, only have a cellphone camera.)

Here's one interesting schematic for those who like to connect the pedals in serial or parallel connections.
In my opinion, routing signals in a serial mode has a disadvantage because the signal after the loop A is
divided into two way, loop B and crossfade pot, means not purely routing Loop A and Loop B
(potentiometer crossfade is in parallel with the loop B).

Wrote about mine to my blog less than a year ago and today i got a contact from a person who had recently bought one. He was concerned about the pedal since it didn't sound like he expected. While comparing the shots on my blog to his board, the circuit had a number of differences. He uploaded a few photos to imgur here:
And the crappy phone photos of my unit are up at

Could this be one of those where Maxon factory has used another model's MC4101F based board for a DFL? My first guess was...

Gutshots from the Behringer Noise Reducer NR300.

The IC values are:

IC1 (3046)Empty
IC2 (2159) cool Audio V2 181 / L8EQR
IC3 JM16ABE3 / LM3046M
IC4 cool Audio V4558M
IC5 ST 064C / GZSM341
IC6 ST 064C / GZSM341

The T values are

T1 (846) 1B CH
T2 (846) 1B CH
T3 (856) 3BW43
T4 (113) GS 7
T5 (846) 1B CH
T6 (113) GS 7
T7 (846) 1B CH
T8 (846) 1B CH
T9 (846) 1B CH
T10 (846) 1B CH
T11 (846) 1B CH
T12 (856) 3BW43
T13 (113) GS 7
T14 (846) 1B CH

The values in brackets are printed on the board

Anyone add an LED to their Pic Wah? How did you do it?

Just a few photos, what's inside.

For all those who like to peek to see what's inside. 8)

Dear ForumFolk,
Please find attached internal pictures of Joyo's JF35 Pocket Metal.

The SMD pars are very small, perhaps 4 or 5 mm by 2mm.
I don't have the dexterity to modify this, I don't think.

The diodes are clearly silicon. There are three TI 4558 op amps in there. This combined with a metal housing gives the same amount of self-noise as a Metal Zone.
I find this pedal to be a pleasing tone - it's very cheap, and it sounds great for the price if you want to do some Ride the...

Hi,

Here's a link to a dropbox folder with some guts of the Guyatone PS-007 Phaser, including a .svg file with the components values. I hope I did not mess with the color code though...

Guyatone PS-007 Phaser folder

Tracing ain't done, but it may be very close to Boss PH-1, or some other 4-stage FET phaser. The MA522 part is a low battery detection, see the schem I've made for the Guyatone PS-006 Analog Echo...

Enjoy!

apologies if I put this in the wrong place. should it be here or in the 'testing' one?
anyways.. I'm having my first real crack at using eagle. I have the freeware version... she's a beast huh? lots to get my head around.. anywhoo. I had a search for the phasers in general on google and found this lot of schematics, and in there was the schaller phaser I
so I thought I'd try to transfer it into Eagle. I now have two questions.. can someone verify if I got it right?
and will I be able to put it...

Does anyone happen to have pictures of the crybaby octave wah from
The early 90s? Gcb-95O. Would be amazed if anyone has gut shots of this pedal. I have seen
This wah knocking around once in a blue moon. Seems rare to come by.

Recently acquired one of those crybaby octave wahs. Bought it as defective. Well, yeah, its defective alright. But even its shot-out guts are worth taking a picture off, since I cannot find ANY info on these babies on zeh internetz.
The side pots regulating ?? and ??...

I like the tone of my MB Flux Drive but even with the gain only at 9 oclock on the dial which is barely on, you barely turn on the volume and it is way past unity gain. Turn up the gain or turn the tone/bass knobs past noon, and unity gain is impossible. When playing live, I don't like the solo to be way louder than my base tone. I can solder pretty good but I don't understand the theory. Thanks

Hi.
I got a Coron Over Drive pedal for maintenance from my friend. It's a quite nice sounding low gain overdrive. One fet (k86A), two tant. caps (100nf, 3,3uf) one film cap (47nf) and three resistors (10K, 22K, 510K).
At the input there is a 1MC pot wired as a variable resistor (gain control, labeled emphasis ) and output vol pot is 50KA. Beautiful, simple, classic.
I will document it and post pics and schematics when I get into it, although there is some pics and one schematic floating in the...

i modded a multiplay , in the process the expression pedal jack i cut in case shorted . i have been pulling my hair out , rather blindly attemptingg to get it going again , and i feel i may be close ... at this point the switching system is working , thel leds respond .

the odd part , i am getting all the functionality , only it works properly in bypass mode .

the issue is this , in bypass the mixer section of mix control is not operational . it works fine when the led is on and it appears...

Also, for my bass needs.......

Another Fuzz face with two AC151's. Basically the same as the Dream Buzz (schematic can be found on DIYstompboxes but now with the BIAS pot on the outside. This BIAS pot changes the collector voltage from -9V to -5.5V.

The pedal though has a HUGE error! The polarity on the outside of the pedal states that it is center negative, the circuit states different. I tried with a normal 'center negative' adapter which led to no LED or effect. When I traced it I tried it...

Anyone, any info? Schematic, decent gut shots or access to one?

Hi
as requested by fellow Govmnt Lacky, let's go with some pictures of the one I have to repair; it has the Reticon SAD512D onboard, and it's not in perfect shape.
All the transistors/FETs are sanded :evil:
Diodes are 1N914, trimmer is 250KOhm.

IMGA0905.JPG
IMGA0907.JPG
IMGA0909.JPG
IMGA0914.JPG
IMGA0911.JPG
IMGA0912.JPG

Pictures of a mint unit:

Let me know if you need more pictures or info about the one I've on my desk at the moment.

Cheers.

Well, thanks to jerms over at the DAM forum, I finally got to trace the Two Face. I'll tell you right now.... not for the faint of heart. The amount of el cheapo wire that's stuffed into the enclosure is hallucinatory. Take a look.....

I also had a request for a close up of the knobs, so here are some more shots, including the fuzz, and clean board. The 12vac to +/-12vdc board is identical to the PLL, or Lion.

And of course, my trace,

Going to breadboard this in...