Last night, a friend of mine told me that his favorite radio - a galaxy 959 DX - took a dump. No RF output. I told him to hook up his meter and see if there was any output at all - to see if the finals or the driver had failed. He said nothing showed up at all - using a Dosy meter.
At the time of the failure, it was hooked up to a XForce 200HD linear on his base station.
Q: Can the amp 'barf back' power into the finals/driver of a radio and start to destroy parts? And if this is so; what other parts took the hit? I know there are diodes across the output finals in this radio - could they have been popped as well?
More importantly; what is happening in the amp that allowed this to happen - if in fact it is the cause? I know Ham's don't use 10 meter amps because they complain of this problem. What is good for the goose is good for the gander???
At the time of the failure, it was hooked up to a XForce 200HD linear on his base station.
Q: Can the amp 'barf back' power into the finals/driver of a radio and start to destroy parts? And if this is so; what other parts took the hit? I know there are diodes across the output finals in this radio - could they have been popped as well?
More importantly; what is happening in the amp that allowed this to happen - if in fact it is the cause? I know Ham's don't use 10 meter amps because they complain of this problem. What is good for the goose is good for the gander???