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.
Thanks
Keith
Strobe light phone indicator
Feb 21, 2004
3 Replies
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.
You're wrong. The ringer current is 90 VAC superimposed on the 48VDC and it's about 20 Hz.
will
it's
Go to Radio Shack and buy one. They're reasonably priced.
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