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Strobe light phone indicator

Discussion in 'Electronic Equipment' started by Keith, Feb 21, 2004.

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  1. Keith

    Keith Guest

    Does anyone have a schematic for once of those strobe circuits that will
    flash when the phone rings. I want to make one for my workshop where it's
    very noisy at times and I don't hear the phone.


  2. gothika

    gothika Guest

    I'm not sure if the voltage is still the same for the ringer signal(it
    used to be around 24volts peak. correct me if I'm wrong)
    I've seen where some have wired directly off the ringer circuit and
    used low voltage lamps with a red dome for this purpose.
  3. You're wrong. The ringer current is 90 VAC superimposed on the 48VDC
    and it's about 20 Hz.
  4. Go to Radio Shack and buy one. They're reasonably priced.
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