Oakley Sound Systems
5U Oakley Modular Series
Flanger
PCB Issue 2
User Manual
V2.4
Tony AllgoodOakley Sound SystemsCARLISLEUnited Kingdom
Page 1: ...Oakley Sound Systems 5U Oakley Modular Series Flanger PCB Issue 2 User Manual V2 4 Tony Allgood Oakley Sound Systems CARLISLE United Kingdom...
Page 2: ...The Flanger module as a 1U wide MOTM format module 2...
Page 3: ...nd a list of the various interconnections please visit the main project webpage at http www oakleysound com flanger htm For general information regarding where to get parts and suggested part numbers...
Page 4: ...letely different effects A feedback path from the delayed output back to the input is available and you have control over both the amount via the FEEDBACK pot and phase of the signal via the FBK switc...
Page 5: ...n of the signal level being sent to the BBD devices The DRIVE control should be adjusted to ensure that the green LED remains lit for optimum signal level The red LED will light when the signal level...
Page 6: ...of delay times from 0 5mS and 15mS For chorus and vibrato type one would normally use delay times of around 5mS to 15mS All of these effects require the use of some form of modulation That is the del...
Page 7: ...y in NEG mode and at longer delay times The output signal level at high feedback levels can get very loud and be somewhat unpredictable For the classic flanger sounds both switches would normally be s...
Page 8: ...r module is quite capable when feedback is applied to produce signal levels far greater than what goes in If the output matched the input perfectly ie 5V peak ended up as 5V peak with no feedback then...
Page 9: ...e clock signal so the delay produced by each of them is identical Also the audio signal passing through each one is the same but with one important difference one of them is the inverse of the other T...
Page 10: ...l the waveform s peak amplitude is minimised Essentially we are making the alternating spikes the same size as each other Now put your probe on the right hand side of R24 Adjust NULL2 until the wavefo...
Page 11: ...n playing octaves on your midi controller The 1V step change when you play between a C on one octave and then a C an octave higher is ideal Set the delay pot to its mid point With no CV input applied...
Page 12: ...ule If you have any problems with the module an excellent source of support is the Oakley Sound Forum at Muffwiggler com I am on this group as well as many other users and builders of Oakley modules I...
