Showing posts with label Overdrive. Show all posts
Showing posts with label Overdrive. Show all posts

Wednesday, February 23, 2011

Super Six

SUPER SIX - FENDER EMULATION AT LEVEL 6
Transistor is BS170.

Wednesday, October 7, 2009

BW_CAC - Build Verified.


BW_CAC
CAC for CRANKED AC30. This is for you if you are Brian May's fan. :)
This guy can cover light overdrive to near fuzz when cranked.
Very dynamic. You control the muddiness with your own pick strength.

The layout was verified and it is AWESOME!!!!.


Thursday, September 3, 2009

Supe6 - Pending Verification

Supe6 is the famous BLACKFACE on magical "6"
Extra clue: It has INTENSE, TONE and VOLUME.
LOL: What is this pedal? Pretty obvious by now right?

5V1 is a ZENER DIODE for MOSFET protection.
The diode next to 9V is a double blade sword...polarity protection and a bit voltage sag.
The E-Caps below 2M2 is 47uF, the value get hide a bit on the layout.
Square pad for LED denoted Anode pin.
Extra slot allocated for bigger 104 mylar cap.

Tuesday, May 19, 2009

MAC - Verified



MAC for MATCH-AC (1590B Okay!)

This is a MATCHLESS / AC30 Emulation.
If you are familiar with OLC MATCHLESS, this is the stripe down version of it.
Tone selection section is striped.
The trace at bottom left of PCB is quite tight. Becareful to avoid solder bridge.
Q1 is MOSFET, BS170 or 2N7000.
Q2 and Q3 are JFET, J201.

Monday, May 18, 2009

SunShine Liquid Overdrive - Pending Verification


SunShine Liquid Overdrive (1590B Okay!)
This is build from the scaleton of the original pedal. You'll not get 100% clone from this.
It is an breakup type overdrive.
Gain1 and Gain2 is very interactive to each other.
Transistors are JFET, 2N5458 works best. J201 might need larget trimmer to bias it right.
C10/C11 /C12 are not in the original. It was added for possible tweaking.
VR2/VR3 need to tweak to half of supply voltage or tunning by ear.

Friday, March 20, 2009

ARC Booster - Build Verified


Size of Board: 52mm WIDE x 41mm HEIGHT (1590B Box Ok!)

The slashed part are changes needed to build RC.

For AC, use 2 diodes in RV and 1 in FW clipper group.
For RC, use 3 diodes in both RV and FW clipper group.

Transistor in the original unit is 2SC1815 (view from top, left to right = ECB)

GSR - build verified



Size of Board: 55mm WIDE x 33 mm HEIGHT (1590B Okay!)
Use BAT41 for Dfor1 and Drev.
Dfor 2 is Germanium Diode, 1n34.



Tone control is actually B100k.
SF Resistor (Below the switch, beside the 2k2 resistor) are actually 6K2 OHMS.
Use OPA2604 or TLC2262. AD712 is another accident...accidentally cloned from ZDRIVE.

3 pads between the 2N7000 MOSFET are the HARD / SOFT Switch.