Hello all, I managed to located a schematic for a Pearl DS-06 and made a discovery of how the spectrum control works, from what I see it is an active twin T filter and the rotary spectrum control changes resistor values for one side of the filter. So my intent with my modification is to totally bypass this filter with a DPDT switch. So to execute this I believe I lift a leg of C6 and solder a lead where the leg once was soldered on, feed it to my DPDT then from there to the original solder pad from a lifted R22 if I wanted to retain both sets of clipping diodes? Also would ditching that rotary for a dual gang pot make for a more versatile control versus having a 6 sets of preset values? TIA!
http://mrotqch.webcrow.jp/stomp/zoo/PEARL_DS-06.bak.png
Pearl DS-06 Distortion - question about modding
- Rambozo96
- Breadboard Brother
- lolbou
- Old Solderhand
I would leave R10 and R16 and try a 10k pot to replace the others. If you go from R11 to R15, you can see that they rise slowly at first, and then increase dramatically. Log pot then.Rambozo96 wrote:Also would ditching that rotary for a dual gang pot make for a more versatile control versus having a 6 sets of preset values?
Don't really know if it's a useful feature compared to the rotary, bu you may be able to dial in a sweeter spot?
Why not just short it between C6 and C9, using a SPST to un-short?Rambozo96 wrote: So my intent with my modification is to totally bypass this filter with a DPDT switch. So to execute this I believe I lift a leg of C6 and solder a lead where the leg once was soldered on, feed it to my DPDT then from there to the original solder pad from a lifted R22 if I wanted to retain both sets of clipping diodes?
- Are you a mod or a rocker?
- Uh, no, I'm a mocker.
- Uh, no, I'm a mocker.
- gigelmargel
- Resistor Ronker
Very strange schematic for me
The lower part, between R31 and R36/Q5 it's a total mystery. How could be the value of C17?
The Q2 is used for bypass?
The lower part, between R31 and R36/Q5 it's a total mystery. How could be the value of C17?
The Q2 is used for bypass?