Re: Reviving a Rediffusion Mk1 - variable transformer to 'warm it up'?
It's removing it which causes the problem with interference.
The reason for removing these devices before applying mains power is that they have a habit of exploding when awoken from years of slumber.
You can replace it with a Class X capacitor later if you wish.
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Graham. Forum Moderator
Reach for your meter before you reach for your soldering iron.
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