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Old 14th Feb 2017, 10:43 pm   #24
crestavega
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Join Date: Apr 2014
Location: Kirkwall, Orkney, UK.
Posts: 165
Default Re: Sailor T128 Marine Transmitter.

indeed, closer inspection of PDF p10-11 (section D) shows the exact function of the test sw. the Pre-Drive position "automatically cuts screen grid voltage" which presumably (?) effectively stops any effective PA work.
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