EHX - Riddle QBalls VCF
The LM13600, LM13700, CA3280, and NE5517 are all closely equivalent in function to two CA3094s in a single DIP. There are differences in the Iabc input and the pre-distortion diodes as well as lower overall noise. Takes a bit of circuit adaptation, but not much.
- uncleboko
- Cap Cooler
This really is a riddleR.G. wrote:The LM13600, LM13700, CA3280, and NE5517 are all closely equivalent in function to two CA3094s in a single DIP. There are differences in the Iabc input and the pre-distortion diodes as well as lower overall noise. Takes a bit of circuit adaptation, but not much.
- earthtonesaudio
- Transistor Tuner
Is there some reason to assume this is an analog pedal?
rocklander wrote:hairsplitting and semantics aren't exactly the same thing though.. we may need two contests for that.
- Scruffie
- Opamp Operator
So yeah, it is analog.Quick Specs
80 Hz to 5 kHz frequency response tailored for guitar
Optional expression pedal control
Fully-analog circuit
Switch selectable analog distortion designed for guitar
Start and Stop sweep control
Low Pass, Band Pass, High Pass filter select
Start and Stop for filter sweep and Q control
Separate Dry and Effect outputs
9.6VDC 200mA power supply included
LM13700 Based Envelope Filter I guess, they seem to use them alot now... no clue about the detection.
- earthtonesaudio
- Transistor Tuner
Aha! I didn't scroll down enough on the EHX page, obviously.Scruffie wrote: So yeah, it is analog.
LM13700 Based Envelope Filter I guess, they seem to use them alot now... no clue about the detection.
rocklander wrote:hairsplitting and semantics aren't exactly the same thing though.. we may need two contests for that.
- Scruffie
- Opamp Operator
Haha, I assumed it was digital myself, I just happened to catch that in the specs.earthtonesaudio wrote:Aha! I didn't scroll down enough on the EHX page, obviously.Scruffie wrote: So yeah, it is analog.
LM13700 Based Envelope Filter I guess, they seem to use them alot now... no clue about the detection.
Easily done.
- Ice-9
- Degoop Doctor
Information
Could be a clue in this picture.
It's fairly straight forward, if you want to start it , press start. You can work out the rest of the controls for yourself !
No silicon heaven ? preposterous ! Where would all the calculators go ?
No silicon heaven ? preposterous ! Where would all the calculators go ?
- Ice-9
- Degoop Doctor
Information
No it looks more like 9v centre negative logo to me.uncleboko wrote:Am I seeing + and - 9v at the top?
It's fairly straight forward, if you want to start it , press start. You can work out the rest of the controls for yourself !
No silicon heaven ? preposterous ! Where would all the calculators go ?
No silicon heaven ? preposterous ! Where would all the calculators go ?
- Ice-9
- Degoop Doctor
Information
uncleboko wrote:Amazing that no circuit has surfaced after all this time!
Did you not see my post above where I circled in black a clue.
It's fairly straight forward, if you want to start it , press start. You can work out the rest of the controls for yourself !
No silicon heaven ? preposterous ! Where would all the calculators go ?
No silicon heaven ? preposterous ! Where would all the calculators go ?