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Preservation and replacement decisions
Restoration can aim at historical preservation, appearance, or functional reliability. Document the goal before altering original parts. Label photographs and retain a record of changes so future owners know what was done.
Replacing every part blindly is not diagnosis. Component value, voltage rating, polarity, temperature rating and intended function matter. Some locations require approved safety-rated components; a larger-looking part is not necessarily suitable.
Worked example
A restoration record lists the original component identifier, approved replacement specification and reason for replacement.
Try it yourself
Compare two fictional restoration goals: display-only preservation and professionally restored operation.
Check your understanding
What makes a replacement suitable?
Function and ratings determine suitability; visual similarity is not enough.
References and further reading
Lessons and examples are original introductory material. These references offer further study; their material is not included as a copied course.
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