need help electronic/relay problem phone horn

[georgebaker]

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

[HarryA]

As you have posted this question on numerous forums I will leave it up to them to answer your question. Good luck.

[HarryA]

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.

[JohnKlein94]

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.
 

[Debra Lee]

Look up "need help electronic/relay problem phone horn" on the internet. You might find some helpful information there because he posted this on five or six different boards.drift boss

[billyroberts]

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.

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.

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like .03VAC to 12VDC?

Thank you

Take either (or the other) wire(s) of the speaker, and then measure the voltage once more. For accuracy, you should take two measurements: one using the meter set in AC mode. The other another using the meter in DC mode.