Guitar Pedal self Oscillation Question? - diyAudio
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Old 6th April 2005, 06:29 AM   #1
diyAudio Member
 
Join Date: Apr 2005
Location: California
Question Guitar Pedal self Oscillation Question?

hi
1.) How do u self Oscillate an Effect without Feedback? or without going to Maxium feedback to Oscillate the effect?
2.) Self Oscillate u dont have to use Feedback Right?
i thought self oscillating was internal with out using Feedback?
3.) The sound im looking for is when u DONT plug your guitar into the phasor pedal
and just here the sound of the phaor or , chorus or flanger by its self
making the circuit noise, what i have to do is take the phasors output jack and plug
about 3 or 4 volume db booster to get it up to LINE level so i can here the sound
of the Phasor or chorus , or flanger Alone NO guitar plugged in im just using it to get
the sound of the pedal itself.,, What is this called im doing ?
is there a Better way?
4.)
well can u please tell me what i would have to do internally to make a self osc
ok the arp 2600 keyboard has a self osc Knob or function u dont have to press a key down
and it self oscs the keyboards Filters its self osc not feedbacking
i know inside a feedbacking a pedal u take the output and use a pot and the wiper
goes to either the positive or negative signs of the INPUT Opamp ok we got that
but thats feedbacking the pedal and to oscillate the pedal u would have to go
all the way to the Maxium of Feedback to make it oscillate.
What circuit do I need to build that would make it like the Arp 2600 self osc
in a Phasor pedal ?

Block Diagram

where would the Circuit go like in the ARP 2600 to Self Osc late this phasor?
Thanks alot and thanks alot for the emails back for your time
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