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Hello,

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Has anyone had to replace the vernier drive on the load control of any of the Ameritron AL series amplifiers?

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Thanks & 73,

Garry - K4OR

Sure. But before you do that, make sure it is actually the vernier drive that is the problem. The capacitor itself may have a "tight spot" on it that is making the drive hang up. Most of the time, cleaning and re lubricating the ball bearings in the drive and in the capacitor itself will cure the issue.

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73' Dan W2NO

I'll take another look in there but looks like a b____ to get to it. I could have done this in my earlier years but eyesight is not what it used to be. How did you tackle the problem?

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73,

Garry?

I tackled the problem by taking the amp apart, removing the capacitor and the ball drive, cleaning and lubricating both. The front panel of the amp will have to be removed to get the ball drive out. Both Tune and Load capacitors have to come out to get to the screws that hold the capacitors and the ball drives in. Not for the faint of heart. You can try a shot or 2 of WD-40 with an extended spray attachment to get some lube into the ball drive at a minimum. New ball drives are available on the Internet for ~ 45.00.

Jackson Bros. in England make them. You may want to get someone to help you with this, or seek out a repair shop.

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73' Dan W2NO