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==Internals==
==Internals==


At 15 tubes, the Type 53/54C and Type CA have the highest
At 15 tubes, the Type 53/54C and Type CA have the highest tube count of any letter-series plug-in.  Each channel consists of a [[6AK5]] cathode-follower driving a [[12AU6]] differential pair
tube count of any letter-series plug-in.  Each channel consists
which drives a [[6AU6]] differential pair.   
of a [[6AK5]] cathode-follower driving a [[12AU6]] differential pair
The two channels converge on a [[12AT7]] cross-coupled cathode-follower.   
which drives a [[6AU6]] differential pair.  The two channels
Four more tubes, a [[6AL5]] and three 12AT7's, comprise a logic circuit which determines which channel drives the output at any given moment.   
converge on a [[12AT7]] cross-coupled cathode-follower.  Four
The options are A, B, CHOPPED, and ALT.
more tubes, a [[6AL5]] and three 12AT7's, comprise a logic circuit
which determines which channel drives the output at any
given moment.  The options are A, B, CHOPPED, and ALT.


==Links==
==Links==
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Tek 53-54c left.jpg|53/54C
Tek 53-54c left.jpg|53/54C
</gallery>
</gallery>
{{Parts|C}}


[[Category:500 series plugins]]
[[Category:500 series plugins]]

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