3 sounds into one speaker at same time

3 sounds into one speaker at same time

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23 July 2009 at 00:18 #22171
Bjorn Ivar Jakobsen
Participant
@bjornivarjakobsen24104
I want to use 3 sound module and just one speaker.

I build the sound module self.

Diesel, Fog horn and siren.

These 3 sound i want to be avalibe to use at the same time, or just 1 module into the same speaker.

How do i do this.

Hope there is anybody that can help me here.

Bjorn
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23 July 2009 at 00:18 #5046
Bjorn Ivar Jakobsen
Participant
@bjornivarjakobsen24104
24 July 2009 at 12:25 #22193
60watt
Participant
@60watt
Common positive and PNP speaker drive is shown

With common negative, use NPN output.
24 July 2009 at 12:34 #22194
Bjorn Ivar Jakobsen
Participant
@bjornivarjakobsen24104
Will try to connect these items to speaker like this
24 July 2009 at 13:03 #22195
60watt
Participant
@60watt
Hold on just a minute. If you mean Robbe 8275/6 8300 8289 then check that they are all compatible. Foghorn,kojak,martins horn,siren ok but I have not seen the diesel unit.

The diagram as just a rough guide.The Robbe units will not be damaged by supply voltage revrsal but follow the board marking for +,- connection and speaker connection and not my picture.
24 July 2009 at 13:09 #22196
Bjorn Ivar Jakobsen
Participant
@bjornivarjakobsen24104
I have built the module self, so i know what cable to connect

Thanks
24 July 2009 at 13:27 #22198
Kevin Flack 2
Participant
@kevinflack2
Hello

Can I ask you did you design the circuit? I have been trying for ages to find a suitable one to build but cannot find any.

Boat kits and their parts are rare in Africa!

Kevin
24 July 2009 at 14:04 #22200
Bjorn Ivar Jakobsen
Participant
@bjornivarjakobsen24104
Yes i did etch the PCB and solder on the parts

I search the internet for schematics, and found many.

Some i have designed self, but most i have found schema by searching.

Bjorn

Norway
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