Is there a tone path ?

Discussion in 'General Electronics Chat' started by Externet, May 11, 2016.

  1. Externet

    Thread Starter AAC Fanatic!

    Nov 29, 2005
    758
    57
    Hi.
    in this circuit,
    22kswcirc.gif

    XS1 inputs 15VDC, and a 22KHz tone, and outputs 1GHz RF all superimposed.
    XS2 or XS3 inputs RF and outputs 15VDC by the presence of tone or not.
    It is a tone controlled SPDT switch.

    Question is, if the tone entering XS1 will show up as outputting to (passing trough) XS2 or XS3 ?

    Do not know the values of L1, L2, L3. Suspected very low, suspected intended to block RF.
     
  2. AnalogKid

    Distinguished Member

    Aug 1, 2013
    4,515
    1,246
    Probably not. Each output is driven by two saturated switches in series. OTOH, circuit grounding is...different.

    ak
     
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