So I have built several Dr. Phybes circuits and used the rate LED mod that was detailed in the old forum. However that rate LED gives only an on/off LED at the speed of the phaser. What I would like to know is if there is any way to add a rate LED that pulses rather than just on/off? Looking for something like the rate LED on the EA tremolo, Apollo tremolo, or some other phaser circuits I have seen. Thanks for any input!
Thanks, that’s the way I have been wiring it, which works fine and gives a blinking on/off led in time with the rate. I was just wondering if there were a way to wire up a rate led that pulsed from off, growing steadily brighter to on, the steadily darker to off?
LEDs can be dimmed in two ways: analog and pulse-width modulation (PWM) dimming. Despite its attractive simplicity, analog dimming can be inappropriate for many applications because it loses dimming accuracy by about 25 percent+ at only 10:1 brightness levels. Pulsing is a more complicated animal.
Thanks guys. I was hoping there would be just a different place on the Dr. Phybes circuit that I could attach the LED to get that dimming pulse. I will have to consider if I want to just go with the blinking rate LED or tackle the more involved animal that is the dimming pulse LED as outlined above. Appreciate the help!
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