Hi all, I have a Cobra 29 LX that was working fine until a couple of weeks ago when the squelch stopped working. I can turn the squelch knob all the way to the right, and the squelch never closes. This occurs whether an antenna is connected or not, so definitely not a noise level issue. I thought possibly the squelch pot had gone screwy, but I checked it on my bench today and it's tracking nicely. Gotta be something else in the squelch circuit itself, but I haven't found it so far. Checked TR11 and TR12 against the voltage chart I found in a Cobra 29 LTD Service manual. The Collector of TR11 doesn't have the 4.2v collector voltage that it's supposed to when the squelch is at maximum. Any ideas?