Electronics Repair FAQ And Testimonials- Part 25

Hi Jestine!

Good day!

Thanks a lot for your e-mail.

I’m so glad and happy to tell you that I have already repaired a number of electronic equipment with the help of your ebooks.
It’s not only profitable but the joy of self-achievement are wonderful.

Thanks again and I wish you and your family good health and more power to you on your career!

With my best regards,

George

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What should new electronic technicians do
when they come across older electronic devices or equipment with obsolete components?
like for example
lets say you have a circuit board that was assemble in the early 1980s. the part that needs replacing is a transistor.
how many times does this old transistor
part number has to be cross referenced from the late 1980s, 1990s,2000 etc.
will the part number on that old transistor be in todays cross reference book?

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