Circuit help needed

[Mike S]

My 10 is equipped with a stall warning horn that the previous builder installed.

In checking the stall system, I have now found that the sound level of the factory horn is woefully inadequate.

I am looking for a simple electronic circuit that will generate a signal, that can be input into the intercom, in lieu or the factory horn. My PS intercom will accept audio warning inputs.

I figure the knowledge is out there in the VAF database, so if someone knows of a chip, or simple circuit that works on 12v, and will make a really obnoxious tone that can be controlled by the factory stall vane switch, please let me know.

I am trying to work with what I already have, so the idea of installing an AOA is not high on the list of options.

As always, thanks in advance to all.

 

[cfiidon]

Something like...

Something like this might work for you. I haven't studied it in detail, but the range of power inputs and adding a volume control (Don't know what the input range is on your audio panel) might do what you want.

http://www.ramseyelectronics.com/downloads/manuals/UT5.pdf

Don

 

[Bevan]

Tone annunciator

Vern makes them see...

http://www.vx-aviation.com/

scroll down until you find model number AL-1A Tone annuciator

Bevan

 

[cfiidon]

Annunciator

Now that's the ticket!

 

[elippse]

Warning

I have noticed that in a time of stress one of the first senses to be ignored is hearing. For the various warning signals that I have on my plane, I use a large diameter, very bright red LED that is immediately in front of me on the panel. No matter which way you are looking that light will get you attention!