TWO_TONE_TESTER

Published:2009/7/21 23:09:00 Author:Jessie | From:SeekIC

Twin-T transistor oscillators generate two distinct sine-wave AF signals for use in adjusting SSB transmitters. Q1 is fixed at about 1000 Hz, and Q2 is adjustable between 1000 and 1300 Hz, giving frequency difference of 0-300 Hz for use with scopes having 60-Hz horizontal sweep rate that permits display of one to five cycles of RF envelope pat-tern. Switches permit use of either oscillator separately.-F. Brown, The Two-Tone Tester, QST, Nov, 1978, p 22-24.



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