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I ended up swapping the collector and emitter, and boosted the cap a bit, and it softened the edge well and dropped the offset by a good order of magnitude. I simulated with an NMOSFET and this looks significantly better too. Depending on how it plays out when the guitar is done, I may switch...
Thanks a bunch, both these posts were insightful. I do have a B-E capacitor (since i was trying to soften the transition). I will tune C4 and R12 to try and make the turnoff indistinguishable.
Another idea this sparked would be to use a voltage divider to the collector (in the 500kohm range)...
Hi. I'm using a 2N3904 NPN transistor to ground out an audio signal (from a guitar pickup). It does kill the audio signal, but pulls it to a non zero DC voltage (3mV in simulation, 18mV in practice). This is causing a click when the audio signal is small and the transistor is switched. An...
allegro converter
I made a layout in layout plus 10.1 which I'd like to do some analysis on using something like SIwave, which only supports allegro. I have allegro 15.1 and would like to import my layout. is this possible? Im aware of ToAllegro1**.zip but this isnt on the orcad website...
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