This DOD 201 was my very first pedal. I bought it second hand, as a teenager. Unfortunately it stopped working a year or two later, and I pulled it apart to see if I could fix it. At that stage I couldn't do anything to bring it back to life again, but this was one thing that really sparked my interest in audio electronics, and in the folIowing years, I ended up using the box, the jacks, the stomp switch, and even the knob for several other projects. (That's probably why there is two filled holes on the top of the box!) Last year I found the original old circuit board covered in dust in a box at my parents place and also discovered the schematic for it on-line (the circuit is almost identical to the more famous MXR Phase 45), and with all the extra experience that I have now, I was quickly able to diagnose a fried opamp. With this replaced and everything else wired up it worked perfectly. If memory serves, the original circuit doesn't have any polarity reversal protection, so I'm guessing that I probably had used the wrong power supply at some stage. The pedal now of course has a new quad opamp, but also true-bypass with red millenium status led indicator, smart polarity protection, green speed indicator led, better frequency response for use with bass, normal "Boss-compatible" DC power jack, isolated input jack, and the speed knob now has the word "speed" written on it in Nikko pen. ;-) |
Here's my old Boss OC2 that I bought new around 10 or 12 years ago. I found that I rarely used the 2nd octave and I wanted to try and get more of a Hammond organ bass sound out of it, so the first time I modified it, I hard wired the 2nd octave all the way off, and put a tone control in its place. That first tone control was simply a low pass filter that acted on the octave signal. A step in the right direction, but it still had quite a nasal sound. Rolling off the tone control on my bass seemed to help a lot, so I rewired the new filter to work on the original signal, and put a switchable LPF on the octave synth sound. I think I also adjusted the gain of one of the opamps to compensate for the slightly lossey passive filters. The pedal sounds great, and is always on my gigs. Here's how my P-Bass sounds through the modified OC2. |
Modified OC2 & Phaser Pedals |
Modified OC2 & Phaser Pedals |
Here's my old Boss OC2 that I bought new around 10 or 12 years ago. I found that I rarely used the 2nd octave and I wanted to try and get more of a Hammond organ bass sound out of it, so the first time I modified it, I hard wired the 2nd octave all the way off, and put a tone control in its place. That first tone control was simply a low pass filter that acted on the octave signal. A step in the right direction, but it still had quite a nasal sound. Rolling off the tone control on my bass seemed to help a lot, so I rewired the new filter to work on the original signal, and put a switchable LPF on the octave synth sound. I think I also adjusted the gain of one of the opamps to compensate for the slightly lossey passive filters. The pedal sounds great, and is always on my gigs. Here's how my P-Bass sounds through the modified OC2. |
This DOD 201 was my very first pedal. I bought it second hand, as a teenager. Unfortunately it stopped working a year or two later, and I pulled it apart to see if I could fix it. At that stage I couldn't do anything to bring it back to life again, but this was one thing that really sparked my interest in audio electronics, and in the folIowing years, I ended up using the box, the jacks, the stomp switch, and even the knob for several other projects. (That's probably why there is two filled holes on the top of the box!) Last year I found the original old circuit board covered in dust in a box at my parents place and also discovered the schematic for it on-line (the circuit is almost identical to the more famous MXR Phase 45), and with all the extra experience that I have now, I was quickly able to diagnose a fried opamp. With this replaced and everything else wired up it worked perfectly. If memory serves, the original circuit doesn't have any polarity reversal protection, so I'm guessing that I probably had used the wrong power supply at some stage. The pedal now of course has a new quad opamp, but also true-bypass with red millenium status led indicator, smart polarity protection, green speed indicator led, better frequency response for use with bass, normal "Boss-compatible" DC power jack, isolated input jack, and the speed knob now has the word "speed" written on it in Nikko pen. ;-) |
And here's how they sound together. Sort of hammond-bass-ish, I guess! |
Here's my old Yamaha fretless recorded through the phaser and straight into protools. No EQ on this sample, just the smallest hint of reverb. |
