545: Difference between revisions

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=== Relationship of 545B to 547 ===
=== Relationship of 545B to 547 ===
Some feel that [[547|Type 547]] replaced Type 545, but this is not quite true; Types 545B and [[546]]/[[547]] were introduced simultaneously ([[introduced in 1964|1964]]).
Some feel that [[547|Type 547]] replaced Type 545, but this is not quite true; Types 545B and [[546]]/[[547]] were introduced simultaneously ([[introduced in 1964|1964]]).
It is more correct to say that the 50 MHz 546 and 547 were upgrades. (The Type 544 is likewise the upgrade for the 541.)
It is more correct to say that the 50 MHz 546 and 547 were upgrades. (The Type 544 is likewise the upgrade for 541/543.)


The Type [[K|53K/54K]] plug-in was introduced with the 545 and 541, and until Type [[L|53/54L]] came out in 1957,  
The Type [[K|53K/54K]] plug-in was introduced with the 545 and 541, and until Type [[L|53/54L]] came out in 1957,  
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