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Which version is this ? In my V4 boards even the 3904 run hot.
At 29-03-19, you wrote:
I performed Alison's mod and replaced the 3904â€™s with 2N2222A T08. I also paralleled the 22 ohm resistors to get the 11 ohms. Not to mention I changed q90 and replaced the resister with 2.55kohms. The 2n2222aâ€™s that have their resistors lowered to 11 ohms get really hot. the other set of drivers that donâ€™t have their resistors lowered ( im not sure why) dont get that hot but they get warm.
when testing amp draw from brown wire in line with amp meter and rv2 and 3 fully clockwise I get 0amp on key up. I turn up one 100ma, then the other. now im at 200ma. If I talk in the mic It swings to 400ma+. With CW key down it jumps to under 1amp.
I am on a dummy load
I dont have a power meter.
Does this make sense after doing that mod. is there a reason why those 2n2222a are getting so hot, can i bring RV1 and 2 up so its drawing more current?