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* The original number scheme, used up to 1964, had a 3-digit product group prefix followed by a 3-digit part number, e.g. [[013-013]]. | * The original number scheme, used up to 1964, had a 3-digit product group prefix followed by a 3-digit part number, e.g. [[013-013]]. | ||
* From 1965 on, this was extended to 3-digit product group prefix, 4-digit part number and 2-digit suffix, e.g. [[013-0013-00]] instead of 013-013.<br />The suffix can indicate a version of the component or assembly, a quality or speed grade (see e.g. [[155-0078-00]]), a phosphor type (e.g. [[154-0644-05]] vs [[154-0644-09]]), or some other product variant. It is typically -00 when unused. | * From 1965 on, this was extended to 3-digit product group prefix, 4-digit part number and 2-digit suffix, e.g. [[013-0013-00]] instead of 013-013.<br />The suffix can indicate a version of the component or assembly, a quality or speed grade (see e.g. [[155-0078-00]]), a phosphor type (e.g. [[154-0644-05]] vs [[154-0644-09]]), or some other product variant. It is typically -00 when unused. | ||
Note: also see [[Media:TEK Part Number System.pdf|this doc]] for more detail. | |||
The known '''product groups''' are: | The known '''product groups''' are: |