02-17-2014, 07:44 AM
i have a 125. It was easy to restore and align compared to how I believe your is laid out. From what I learned, the older one has more adjustments for the SW bands and is tougher to work on, not unlike the 37/38 116 chassis differences.
I have one of each of the 116's also and the 121 looks like it is going to be harder from the point of getting to the all the caps/resistors you may need to replace compared to the newer one. I am pretty sure the same layout is in the 690's, but at least there are two chassis so it may not be as tight.
You need a lot more time and maybe a little more ingenuity to work on the 121 versions. But i am not an expert either, just my opinion. I defer to one of the forum experts.
Steve
I have one of each of the 116's also and the 121 looks like it is going to be harder from the point of getting to the all the caps/resistors you may need to replace compared to the newer one. I am pretty sure the same layout is in the 690's, but at least there are two chassis so it may not be as tight.
You need a lot more time and maybe a little more ingenuity to work on the 121 versions. But i am not an expert either, just my opinion. I defer to one of the forum experts.
Steve
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