Erik Hansen's MXR "Script/Block Logo Mod"

[soupbone]

I've linked a page form ErikHansen.net.It's about his "Script to Block Logo Mod"I understand how the mod works,But I'm unsure which side is the logo side and which side is the script side?http://erikhansen.net/mxrphase90mods.php

[Govmnt_Lacky]

I believe the Script side is the one that DOES NOT have the feedback resistor (22K or 24K) in the circuit.

[soupbone]

What i don't understand is he has a 24k resistor going across 2 of the lugs of a mini dpdt on-on switch.Can you elaborate on what you were saying govermentlacky?

[BadIdeas]

I don't know why he would use a DPDT just to remove a resistor from the circuit either, but when the poles are flipped toward the resistor, it is in block mode. When the poles are flipped the other way, the resistor is removed and it is in script mode. The wires connect the poles to the board where you take the resistor out of the block unit.

EDIT: An easy thing to do would be to use a DPDT and use one side like he suggests for using a SPDT, and then use the other side the same way for R32, C11, or C12.

[Govmnt_Lacky]

I believe that the resistor was used in the BLOCK model to "balance" the circuit because they did not use MATCHED JFET transistors like they did in the Script model. The switch will put the box into Block when the resistor is put into the circuit. Some people do not like the resistor in the circuit when the transistors are matched properly.
Look up matching transistors in this forum or over at Geofx and that will give you an explanation.

Good Luck 

[soupbone]

Cool!!Thanks Guys!!