Almost all sets made since the late 80's are built to be 'throwaway' models. The cost of producing and storing replacement parts for televisons quicky began outstripping the cost of a new set. Electronics kept getting cheaper and cheaper and storage space has gotten more and more expensive.
Only exclusive dealers like Curtis Mathes keep parts (in quantity) available longer than the warranty on the existing models. Some parts are used in many sets but not tubes. If the tube goes, the set goes.
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