Author Topic: RandyMarsh's DIY Pedal Mods (Two New Pedals In the Works) (Read 64953 times)

quaternotetriplet · « **Reply #100 on:** December 29, 2008, 09:45:22 AM »

galing sir.

paparoni · « **Reply #101 on:** December 29, 2008, 10:26:43 AM »

galing mo ser..

very detailed..

btw, pano niyo ginagawa yung design sa pedal?

ang angas kasi eh.. paturo naman ser

hehe!

nathanmanansala · « **Reply #102 on:** December 29, 2008, 11:21:36 AM »

Quote from: randymarsh on December 27, 2008, 10:03:36 PM

Aling Minda's Zen Cocodrive SG

Aling Minda's cocodrive

dalhin mo lahat pag uwi mo! pasubok!

randymarsh · « **Reply #103 on:** December 29, 2008, 12:29:48 PM »

Quote from: nathanmanansala on December 29, 2008, 11:21:36 AM

Aling Minda's cocodrive
dalhin mo lahat pag uwi mo! pasubok!

hehehe. abangan mo yung susunod na pedal ko. i'm naming it
super hard eternity plus boost

it's a super hard on + lovedrive eternity OD + mxr distortion plus with boost pedal

oks na yung circuit. yung enclosure nalang uli

Quote from: paparoni on December 29, 2008, 10:26:43 AM

btw, pano niyo ginagawa yung design sa pedal?

ang angas kasi eh.. paturo naman ser hehe!

anong design? yung pcb layout ba? si misis taga gawa ng layout ko.

ako taga hinang. kung yung design sa enclosure, i shop around for window stickers.

paparoni · « **Reply #104 on:** December 29, 2008, 12:59:19 PM »

yung sa enclosures ser.. hehe..

so sticker lang yun? print-out lang then ok na un?

randymarsh · « **Reply #105 on:** December 29, 2008, 01:21:11 PM »

yup. or photo paper tapos sprayan mo ng acrylic gloss finish

jmorrero · « **Reply #106 on:** December 29, 2008, 04:08:49 PM »

Quote from: randymarsh on December 29, 2008, 08:17:23 AM

http://freestompboxes.org/members/soulsonic/schematic/JetterGSR.gif

-replace SW2, r5 and r6 with a single 10k linear pot.
-for U1 i'm using a AD712NJ chip
-d1 and d2/d3 is wired to a dpdt switch, in the down position it uses OA91 germanium diodes, in the up position it uses schottky BAT41 diodes (i also tried BAT46s, same result)
-for q1 and q2, i'm using 2n7000 transistors

happy building!

nice info bro... dadami tayo nyan... he he he

ang ganda ng mga gawa mo bro.

btw zendrive is using 3 diodes, Panasonic film caps (Jetter, AVX Capacitors)

May iba sa schematic ng jetter kung zendrive clone ang gagawin kaya hindi magkatunog ang actual jetter at zendrive.

ito yung mga natry ko nang diode at mosfet transistor.

Schottky Diode

BAT 41 to BAT46

Each has its own character because of the forward voltage

Germanium Diode

1N192
1N69
1N295
1N23
1N468
GE 1N538
OA91
1n34
1n60
1n270
1N192
1n34a
1N541
1n60p
GE 1N126A
1n34ah

Mosfet transistor

BS170G ON Semiconductor
BS170_D74Z Fairchild Semiconductor
RBS170200T OncQue
BS170P Zetex
2N7000 STMicroelectronics
2N7000RLRPG - ON Semiconductor
2N7000-G Supertex
2N7000KL-E3 Vishay/Siliconix
2N7000D75Z Fairchild Semiconductor
2N7000BU Fairchild Semiconductor
2N7000TA Fairchild Semiconductor

Opamp?

almost 6 months bago nafinalize ang zendrive based OD ko, which is the black dzound na nagpipilit na habulin ang clarity at chirp ng dumble amp.

Malaki ang naitulong sa akin ni psychic_sushi sa project na to.

dumble amp video, lespaul, neck pickup

dumble amp video, telecaster

randymarsh · « **Reply #107 on:** December 30, 2008, 09:01:42 AM »

Quote from: jmorrero on December 29, 2008, 04:08:49 PM

nice info bro... dadami tayo nyan... he he he ang ganda ng mga gawa mo bro.

btw zendrive is using 3 diodes, Panasonic film caps (Jetter, AVX Capacitors)

May iba sa schematic ng jetter kung zendrive clone ang gagawin kaya hindi magkatunog ang actual jetter at zendrive.

ito yung mga natry ko nang diode at mosfet transistor.

Schottky Diode

BAT 41 to BAT46

Each has its own character because of the forward voltage

Germanium Diode

1N192
1N69
1N295
1N23
1N468
GE 1N538
OA91
1n34
1n60
1n270
1N192
1n34a
1N541
1n60p
GE 1N126A
1n34ah

Mosfet transistor

BS170G ON Semiconductor
BS170_D74Z Fairchild Semiconductor
RBS170200T OncQue
BS170P Zetex
2N7000 STMicroelectronics
2N7000RLRPG - ON Semiconductor
2N7000-G Supertex
2N7000KL-E3 Vishay/Siliconix
2N7000D75Z Fairchild Semiconductor
2N7000BU Fairchild Semiconductor
2N7000TA Fairchild Semiconductor

Opamp?

almost 6 months bago nafinalize ang zendrive based OD ko, which is the black dzound na nagpipilit na habulin ang clarity at chirp ng dumble amp. Malaki ang naitulong sa akin ni psychic_sushi sa project na to.

dumble amp video, lespaul, neck pickup

dumble amp video, telecaster

cool! thanks for the videos.

sarap mag experiment kung marami ka ngang components. lupit din yung black dzound na gawa mo.

i don't have an orig zendrive to compare my pedal with. kung meron ako niyan then i will never waste my time building a clone. and i read na meron kang orig kaya mas credible yung dzound mo kesa clone ko. there's a missing cap in the jetter schematics, ngayon ko lang napansin

i love high gain pedals and the zendrive is not my cup of tea. kabadtrip din maghanap ng opamp at germanium diodes, at yung nasayang na araw sa pagtroubleshoot nung pedal, kaya i'm not that excited with my zendrive clone hence the crappy name "aling minda's cocodrive". i'm just happy it turned out ok.

cheers sa black d'zound

jmorrero · « **Reply #108 on:** December 30, 2008, 11:22:17 AM »

Quote from: randymarsh on December 30, 2008, 09:01:42 AM

cool! thanks for the videos. sarap mag experiment kung marami ka ngang components. lupit din yung black dzound na gawa mo.

i don't have an orig zendrive to compare my pedal with. kung meron ako niyan then i will never waste my time building a clone. and i read na meron kang orig kaya mas credible yung dzound mo kesa clone ko. there's a missing cap in the jetter schematics, ngayon ko lang napansin

i love high gain pedals and the zendrive is not my cup of tea. kabadtrip din maghanap ng opamp at germanium diodes, at yung nasayang na araw sa pagtroubleshoot nung pedal, kaya i'm not that excited with my zendrive clone hence the crappy name "aling minda's cocodrive". i'm just happy it turned out ok.

cheers sa black d'zound

Wala din akong zendrive bro...Aling capacitor bro? he he he. Share mo na rin sa iba. btw, mas magugustuhan mo ang rat. kaya ang zendrive sa lower drive settings. gamitin mo lang yung mga parts na ginamit sa original na rat, budrat.

randymarsh · « **Reply #109 on:** January 02, 2009, 08:10:27 PM »

Quote from: jmorrero on December 30, 2008, 11:22:17 AM

Wala din akong zendrive bro...Aling capacitor bro? he he he. Share mo na rin sa iba. btw, mas magugustuhan mo ang rat. kaya ang zendrive sa lower drive settings. gamitin mo lang yung mga parts na ginamit sa original na rat, budrat.

hehe. there's a 10pf cap missing na nakaparallel sa clipping section or pins 1 and 2 ng IC. meron na rin akong rat clone

randymarsh · « **Reply #110 on:** January 02, 2009, 09:09:22 PM »

Happy New Year dudes!

Eto, share ko sa inyo yung Mods for the Vox v847 Wah.

The mods includes

True Bypass
Effect On LED Indicator
Vocal Like Sweep
Multi Wah ala Crybaby

Youtube Video
http://au.youtube.com/watch?v=eWL-L3MS19w

DIY Instructions posted on my personal blog/website, dami kasing pictures eh.
http://www.arjinted.com

Enjoy. May part 2 pa to. post ko bukas

nathanmanansala · « **Reply #111 on:** January 02, 2009, 09:59:27 PM »

yan!!!

happy new year dude!

nathanmanansala · « **Reply #112 on:** January 02, 2009, 10:02:54 PM »

nagkaron din pala ako ng eq7 dude.

binilin ko kay ermats last year pa. this year lang dumating. nasabay sa balikbayan box ng tita ko.

quaternotetriplet · « **Reply #113 on:** January 03, 2009, 01:23:16 PM »

Sir randy, san makikita ung clipping diode mod??

randymarsh · « **Reply #114 on:** January 03, 2009, 10:02:54 PM »

Part two of the modded Vox wah series.

i've added a new knob called "crackle ok" and more settings on the multi wah knob. I've replaced the color changing LED to a regular orange one. I found out that the LED is adding noise to the wah effect. And finally a switch to enable the Super Hard On pre boost.

The guts

List of features
-True bypass switch
-Vocal like sweep
-Multiwah - 11 wah modes and a volume pedal mode accessible via selector knob.
-SHO (Super Hard On) pre boost circuit with switch and "crackle ok" knob.
-Orange LED

Videos

12 Position Multiwah Demo
http://au.youtube.com/watch?v=94kg3P4vS9g

Wah + SHO Demo
http://au.youtube.com/watch?v=iUR5r1oARYI

Will post the DIY instructions on my blog later.

Quote from: quaternotetriplet on January 03, 2009, 01:23:16 PM

Sir randy, san makikita ung clipping diode mod??

Para saang mod?

Quote from: nathanmanansala on January 02, 2009, 10:02:54 PM

nagkaron din pala ako ng eq7 dude.

binilin ko kay ermats last year pa. this year lang dumating. nasabay sa balikbayan box ng tita ko.

Ayus. Pre na move yung flight ko ng Jan 8 and will be leaving on the 10th. Kaya iiwan ko nalang yung pedal mo sa utol ko.

Red_Strat · « **Reply #115 on:** January 03, 2009, 10:37:24 PM »

Question.. with the Vox V847 mods that you did, does the pedal handle high gain better now? Ang dami ko kasing nababasang reviews na hindi maganda ang tunog nitong Vox wah with high gain.

randymarsh · « **Reply #116 on:** January 03, 2009, 10:52:12 PM »

Good question. i haven't tried it actually with a distortion pedal. Pero nasubukan ko siya gamit yung distortion ng amp mukhang ok naman. Will try it with a distortion pedal tomorrow.

I did have the same problem before with a boss foot wah, maganda sa clean pero panget sa distortion. I also have a crybaby and a morley bad horsie, dun wala akong complaints.

Red_Strat · « **Reply #117 on:** January 03, 2009, 11:22:38 PM »

Yeah, I read that Dunlops & Morleys handle gain quite well. But the stock Vox sounds warmer to me. Kaya nahihirapan akong pumili.

Antayin ko yung feedback or video mo.

nathanmanansala · « **Reply #118 on:** January 04, 2009, 09:54:39 AM »

Quote from: randymarsh on January 03, 2009, 10:02:54 PM

Para saang mod?Ayus. Pre na move yung flight ko ng Jan 8 and will be leaving on the 10th. Kaya iiwan ko nalang yung pedal mo sa utol ko.

kanino ko iaabot yung unmodded GE7?

randymarsh · « **Reply #119 on:** January 04, 2009, 05:33:41 PM »

Quote from: Red_Strat on January 03, 2009, 11:22:38 PM

Yeah, I read that Dunlops & Morleys handle gain quite well. But the stock Vox sounds warmer to me. Kaya nahihirapan akong pumili.

Antayin ko yung feedback or video mo.

The Vox wah sounds ok with distortion pero not as good as bad horsie wah. The problem with the vox wah is the heel down sound, medyo bawas ang gain. Parang may volume swell effect, yung heel down ang mahina ang volume. Kaya hindi convincing yung wah effect sa distortion lalo na if you are going to play wah licks ala shash or kirk hammett. Pero oks siya sa cocked wah ala blues saraceno or zakk wylde.

Quote from: nathanmanansala on January 04, 2009, 09:54:39 AM