Re: MXR Equalizer Schematics
Posted: 02 May 2012, 13:26
Can I fit the linear slide resistors externally with wires
tracing pedals since 2007
https://www.freestompboxes.org/
6b is different than the 10bGovmnt_Lacky wrote:Not to poop on anyone's parade but...
It clearly stated on the MXR schematic for the 6-band that ALL of the slider pots are:
"CTS spld taper 15K. 10% resistance at 25% rotation. 90% resistance at 75% rotation."
I see most of the diagrams that people are generating as having 50K sliders
After looking at several taper curves, it appears that this taper reflects an EQ (W) taper as pointed out earlier in this thread.
Govmnt_Lacky wrote:Not to poop on anyone's parade but...
It clearly stated on the MXR schematic for the 6-band that ALL of the slider pots are:
"CTS spld taper 15K. 10% resistance at 25% rotation. 90% resistance at 75% rotation."
I see most of the diagrams that people are generating as having 50K sliders
After looking at several taper curves, it appears that this taper reflects an EQ (W) taper as pointed out earlier in this thread.
I have a bunch of these 15K sliders NOS from MXR if anyone need them.Dirk_Hendrik wrote:Govmnt_Lacky wrote:Not to poop on anyone's parade but...
It clearly stated on the MXR schematic for the 6-band that ALL of the slider pots are:
"CTS spld taper 15K. 10% resistance at 25% rotation. 90% resistance at 75% rotation."
I see most of the diagrams that people are generating as having 50K sliders
After looking at several taper curves, it appears that this taper reflects an EQ (W) taper as pointed out earlier in this thread.
Although I agree qith you that the combination of a reverse los and a log taper over the full travel, making a w-taper indeed, gives a superior response but functionally the value doesn't make a difference at all. Take 20k linears and the circuit still behaves like an EQ with the same min-max cut boost values. Make em 100k linear and it still behaves like an EQ with the same min-max cut boost values
You need ±15VDC to have the same original rails.jimosity wrote:On the ten band, is it possible to bypass the AC input and have it run right off of DC?
Does that mean it needs 15vDC or can it be modded to run on 9VDC (maybe with a charge pump and bipolar supply?)?