I have a Boss RC-50 Looper pedal that I want to use the metronome circuit for also creating an external clock for interfacing with various synthesizer modules, as well as possibly triggering lights, etc. I haven't been able to get a schematic. I did trace the circuit enough to be able to run external LEDs in parallel with the metronome LEDs.
I've experimented with connecting a 4050 hex buffer to the driver output/ LED input. This seems to work well enough, though I wonder about the reliability. I assume there's a LSI chip of some sort that's driving the LED. Scoping the LED input shows an irregular pulse that's about 3 volts, with a good bit of noise. I'm not real big on transistor theory, but I'm wondering if I should use a JFET (common source amp?) between the the driver output/ LED input and the buffer input to give a bit of a signal boost.
Am I headed in the right direction?
I've experimented with connecting a 4050 hex buffer to the driver output/ LED input. This seems to work well enough, though I wonder about the reliability. I assume there's a LSI chip of some sort that's driving the LED. Scoping the LED input shows an irregular pulse that's about 3 volts, with a good bit of noise. I'm not real big on transistor theory, but I'm wondering if I should use a JFET (common source amp?) between the the driver output/ LED input and the buffer input to give a bit of a signal boost.
Am I headed in the right direction?