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Personally, I am not a fan of it. I have purchased hundreds of thousands of feet of it in my professional life, regretting a lot of it. At HF, I use RG-8/U whenever possible.

IC4 8 volt regulator MB3756 Pin 1

Double it for Dosy.

9913 is not RG8/U. Unlike RG8/U and it's military designated counterpart RG-213, 9913 is an air dielectric cable. Which is not used outdoors in the wireless industry, due to water intrusion/condensation.

DOOSY

Unless it's a Daiwa, then it's a 1/4.

The difficult part is that you need to have the 3 board service kit to properly work on this model It was rather expensive to buy from Yaesu, close to $400 for 3 extender boards. The other difficulty, is getting parts. I used to work on this model and have the service kit. What is wrong with...

It is not 5/8 wave. It is a loaded shunt fed 1/4 wave, rated at 1000W. The model is KL-11-N (NMO), KL-11-U (UHF).

If the power output was in fact low, it could have been adjusted rather easily, since you have a high end wattmeter.

Mine was measured at 104 PEP SSB on the RF Applications VFD and assorted other stuff you cant get at 1-800-HAM-BONE. Doesn't matter anyway, he returned it for refund.

Where did you get the rock from?

Do the carrier balance alignment.

They are NOT identical. Close, but not identical. The Uniden has the 11.3258 HC/49 crystal. The Cobra's may have the 11.1125 crystal, or a larger 11.325.

There are a few guys still rebuilding the oldest of old, CDE/Hy-Gain rotors. I rebuilt my T2X over 30 years ago. I am going to see how it does. If not good, I am sure it is just grease that hardened, that I will clean out and replace with synthetic bearing grease. Friends, don't let friends buy...

Pre-MFJ Ham IV or T2X. Yaesu has good rotors, but when they fail, you are screwed. Don't ask how I know this.

What do you need done? Send PM.

Try removing 8 volts (or whatever someone tied to it) from the clarifier circuit. See if the freq shifts. That should tell you if you are on track with a varactor. If it is a switching diode, it will most likely be in the PLL programming. But, you said you have already been through that.

The reason for the amp failing, is anyone's guess. As far as running your stuff on that gen, ...just do it. A lot of electronics these days, are running on SMPS, which are conditioning the power they supply. A lot of them have a wide input voltage/freq range and still put out a regulated DC...