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The '''Tektronix Type J''' is a 35 MHz dual-trace plug-in for [[500-series scopes]] which never went into production. | The '''Tektronix Type J''' is a 35 MHz dual-trace plug-in for [[500-series scopes]] which never went into production. | ||
The Type J's tentative announcement was in 1963. | The Type J's tentative announcement was in 1963. | ||
It appears to be similar to the [[1A1]], | |||
which was [[introduced in 1964]]. | which was [[introduced in 1964]]. | ||
The [[547]] training guide, dated December 30th, 1963 mentions "a new dual trace plug-in, the 1A1 (also known as the J). | |||
* [http://w140.com/Tek_Type_J_tentative.pdf Tektronix Type J Tentative Specs (PDF)] | * [http://w140.com/Tek_Type_J_tentative.pdf Tektronix Type J Tentative Specs (PDF)] |