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Heathkit SB-220 Load Capacitor Issue-SOLVED




 
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Author Topic: Heathkit SB-220 Load Capacitor Issue-SOLVED  (Read 296 times)
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w3khg
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« on: January 07, 2019, 03:19:31 PM »

When tuning the Load control at a certain point the control will fall due to gravity. Evidently over time the axis has become loose. Is there a way to tighten up on this?

john
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w3khg
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« Reply #1 on: January 07, 2019, 08:27:22 PM »

I posted this question due to having little experience with the 220 and my natural tendency is to take something apart and ask questions later. Waiting for a reply my impatience got the better of me.

On the back of the variable is a screw with a locking nut. Inside the brass screw is a ball bearing and over time brass being a soft metal had worn causing the bearing to recede inside the capsule. All it required was the screw/ball bearing to be cleaned, lubricated with grease and tightened further into the variable and the locking nut tightened. I now have very good tension on the Load Capacitor of the Heathkit SB-220.
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