MP/3 Pre-Amp Solution Needed

[GizmoGuy]

Hi F1rocket,

If the 9volt amp will work it is very simple to convert it to work with 12volts.

You use a voltage regulator to convert the higher voltage to the lower.
Here is a web page that explains them:
http://www.geocities.com/SiliconVall...2/3pinvolt.htm

Be carefull about how much current you are going to draw as many regulators will require heatsinks if the current draw is high.

The regulator you need is a 7809 which is a 9volt.
You can search for one on www.digikey.com (electronic parts place) and will probably want one that is a to-220 package.
The only other parts you may need is possibly a capacitor and a small heatsink. You could solder it all together without a board if you insulate the wires from each other realy good.

Actualy now that I think about it you may not want to solder the parts together so another option is to get a car adaptor for a cdplayer.
This is the easiest method as these units will have a cigarete jack on one end and power plug on the other end.
You should be able to get one at just about any store that sells stereo equipment or even radio shack.
It will definatly make it more plug and play like you want...

I did a google search and came up with this product:
http://www.powerstream.com/dc6.htm
Check you local stores first as if something doesn't work right you don't want to have to try and mail something back.

Let me know if you have more questions or need help.

Take care,

Mike <><
http://www.SurplusGizmos.com
503-439-1249

[szicree]

I know next to nothing about electronics, but you might check out music stores. They make some really small little pocket amps that you can plug an electric guitar into and play through headphones. I used to have one that plugged into a cig lighter.

Steve Zicree

[DGlaeser]

I suggest posting your problem on the AeroElectric Matronics list - or at least doing a search. Lots of knowledgeable folks to help there.

You can wire the Muse pre-amp to your aircraft - just figure out the amperage draw and put the appropriate resistor in-line to drop the voltage. Or, check with the manufacturer - you may be able to hook it to 12V directly.

Dennis Glaeser
7A Wings

[f1rocket]

Thanks Dennis. I DID post this question to the Aerolectric list about 7 months ago. All I got back was a bunch of electronic gobbledigook that only an EE could understand. When I asked for a simple plug-and-play solution, I was chastised as "not wanting to learn more about how electrons work".

Well no, I don't want to learn more. I have enough to learn just to keep my job and keep my airplane flying. I don't want an EE minor degree in the process.

Thanks for the suggestion though. Re-wiring the MUSE might be a solution as well. I was hoping to not get too complicated a solution, but I'm guessing I'm going to need to wire up some contraption to get what I need. Or maybe I'll just spring for a new intercomm.

[tommylewis]

check out this product

http://www.boostaroo.com/

for boosting the sound from an mp3 player

Tom lewis

[f1rocket]

Originally Posted by tommylewis

check out this product

http://www.boostaroo.com/

for boosting the sound from an mp3 player

Tom lewis

I bought one of these because I thought I'd just take the simple way out. WRONG. The darn thing didn't do a thing. Still can't hear the music.

I talked to PS Engineering again. This time, they told me that there's a change an avionics shop can make to the intercom to correct the problem. So I plan to remove the intercom and drop it off at the shop this week. We'll see if that fixes things.

Man, this shouldn't be that tough. I should have bought an audio panel instead.