The Silverface
This unit was offered in a black panel and a silver front panel similar to the Revision A but without a blue stripe. The major change to the revision F was the redesign of the output stage from class A to a 1109 style class AB “push/pull” output, utilizing a B11148 output transformer to provide more gain. Like the Rev A and D the input uses an O-12 transformer and the signal is attenuated at the input with a 600Ω T-pad. We believe the Revisions F is highly underrated and when given a 2:1 ratio becomes one of the more usable compressors we’ve heard.
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