georgebaker Posted December 19, 2021 Report Share Posted December 19, 2021 I need to ring a phone that activates a loud ass horn. Phone has no audio ports. I'd be tapping into the 2 wires that connect from phone circuit board to the phone ring speaker. Inside the handset, the 2 wires show .035-.045 VAC (probed with multimeter while the phone "rings") and connect to an 8 Ohm 2W speaker inside the phone. This 8 Ohm 2W speaker needs to be replaced with a very loud horn or buzzer. -I purchased a generic 12VDC piezo horn. Need to feed it 12VDC when phone rings. That's all. I'm stumped. Low signal relay? Some type of inline amp? I can solder a bit, and have only a very basic understanding of this stuff. Do I look for a low signal relay? like .03VAC to 12VDC? Thank you Quote Link to comment Share on other sites More sharing options...
HarryA Posted December 20, 2021 Report Share Posted December 20, 2021 As you have posted this question on numerous forums I will leave it up to them to answer your question. Good luck. Quote Link to comment Share on other sites More sharing options...
loribennms Posted May 26 Report Share Posted May 26 On 12/19/2021 at 10:26 PM, georgebaker said: I need to ring a phone that activates a loud ass horn. Phone has no audio ports. I'd be tapping into the 2 wires that connect from phone circuit board to the phone ring speaker. Inside the handset, the 2 wires show .035-.045 VAC (probed with multimeter while the phone "rings") and connect to an 8 Ohm 2W speaker inside the phone. This 8 Ohm 2W speaker needs to be replaced with a very loud horn or buzzer. -I purchased a generic 12VDC piezo horn. Need to feed it 12VDC when phone rings. That's all. I'm stumped. Low signal relay? Some type of inline amp? I can solder a bit, and have only a very basic understanding of this stuff. Do I look for a low signal relay? like .03VAC to 12VDC? Thank you I am also having the same issue Quote Link to comment Share on other sites More sharing options...
HarryA Posted May 27 Report Share Posted May 27 Search on the internet for "need help electronic/relay problem phone horn". As he posted this on 5 or 6 other forums you may find useful information there. Quote Link to comment Share on other sites More sharing options...
JohnKlein94 Posted May 31 Report Share Posted May 31 On 12/19/2021 at 7:26 PM, georgebaker said: I need to ring a phone that activates a loud ass horn. Phone has no audio ports. I'd be tapping into the 2 wires that connect from phone circuit board to the phone ring speaker. Inside the handset, the 2 wires show .035-.045 VAC (probed with multimeter while the phone "rings") and connect to an 8 Ohm 2W speaker inside the phone. This 8 Ohm 2W speaker needs to be replaced with a very loud horn or buzzer. -I purchased a generic 12VDC piezo horn. Need to feed it 12VDC when phone rings. That's all. To protect my device, I use https://celltrackingapps.com/how-to-find-someones-name-by-phone-number-for-free/, where I can also find information on how to find someones name by phone number. I'm stumped. Low signal relay? Some type of inline amp? I can solder a bit, and have only a very basic understanding of this stuff. Do I look for a low signal relay? like .03VAC to 12VDC? Thank you I think for safety's sake it's advisable to find one. Quote Link to comment Share on other sites More sharing options...
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