That's it really.
I know that an MXR Phase 45 can be easily modded by inreasing capacitor values & lowering a resistor value.
Can the same be done with this circuit? I'd love to get close to a 30-45 second sweep length.
Yes, increase the values of C15 & 16.
The rules of series capacitors apply so you can double them or mix and match to increase the sweep length but not loose too many higher speeds, or put a switch between.
Fantastic!!!
So, they're each 10uF and the sweep (based loosely on what I hear from the YouTube demo) seems to be about 15 seconds long at it's slowest. I'd like to go higher than a 22uF cap, if possible. What's the next common size up & would that be OK?
Also, would I just switch out BOTH caps for higher values?
Thanks for your help!
Quote from: EdgarMadHook on September 12, 2013, 07:04:34 PM
Fantastic!!!
So, they're each 10uF and the sweep (based loosely on what I hear from the YouTube demo) seems to be about 15 seconds long at it's slowest. I'd like to go higher than a 22uF cap, if possible. What's the next common size up & would that be OK?
Also, would I just switch out BOTH caps for higher values?
Thanks for your help!
Yes, switch both, as I said, series capacitance rules apply, if you make them different values you'll end up with a fraction value.
33uF is probably fine for both, you will loose higher speeds though and the sweep will probably become less noticeable.
I'm not really bothered about loosing higher speeds. I'm not particularly keen on that side of the effect.
I'm just trying to find a good phaser build that's a little more interesting than the Phase 45 build I was going to do.
I've only ever socketed transistors before but I might try & socket the capacitors while I ticker with the levels.
Thanks for the quick advice.