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Message |
    
Jerrymconners
New member
Username: Jerrymconners
Post Number: 1
Registered: 6-2011
| | Posted on Tuesday, June 14, 2011 - 6:59 pm: | 
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I have a "Trucking Toyz" 4 noise toy box that has two 9 volt batteries inside (each powering 2 noise toys). I need to know how I can wire directly into my Mirage 6600 so I don't have to keep buying batteries. Can I solder both positives together and then connect to the positive inside the radio for 12 volt without burning up the noise toys? I also know to solder both grounds and ground them properly but I am just not sure if I can wire the 9 volt to the 12 volt system. Thanks for any help! |
Tech237
Moderator
Username: Tech237
Post Number: 1446
Registered: 4-2004
| | Posted on Wednesday, June 15, 2011 - 10:08 am: |
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Not directly and have it last any appreciable time. It is designed to run on 9v (assuming they batteries are not actually in series and it isn't really running on 18v) and increasing the voltage by 1/3rd will shorten it's life.
You will either need to find a voltage level between 8-10v or add in a 9v regulator for best life/operation.
Tech237
N7AUS
God only made some many perfect head, on the rest he put hair.
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Jerrymconners
New member
Username: Jerrymconners
Post Number: 2
Registered: 6-2011
| | Posted on Wednesday, June 15, 2011 - 6:14 pm: |
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First off, thank you for the fast response. Each 9 volt battery runs two noise toys separately (9 volt setup). Can you give me an idea as to how to wire a 8-10 volt regulator or where I can get one? I would GUESS that I need to solder both positive leads from the batteries and wire that to a 8-10 volt regulator that is then wired to a 12 volt source (inside the radio). Solder both grounds into one lead and connect to a good ground inside the radio as well. I appreciate the help! |
Tech237
Moderator
Username: Tech237
Post Number: 1447
Registered: 4-2004
| | Posted on Thursday, June 16, 2011 - 9:55 am: |
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Let me look through my schematics and things and I may have a design for one. 9V regulators are not as common as 5V 8V or 12V ones.If thye don't draw a lot of current you may get away with just a 9V Zener diode across the supply, but would not be my first choice.
Tech237
N7AUS
God only made some many perfect head, on the rest he put hair.
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Jerrymconners
New member
Username: Jerrymconners
Post Number: 3
Registered: 6-2011
| | Posted on Friday, June 17, 2011 - 8:58 pm: |
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I'll be checking back for more info......ty |
Funtimebob
Intermediate Member
Username: Funtimebob
Post Number: 280
Registered: 5-2002
| | Posted on Saturday, June 18, 2011 - 9:30 am: |
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LM7809??
73 De Bubba
Honorary O.F.
D.O.M. Club (Junior Auxiliary)
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Tech237
Moderator
Username: Tech237
Post Number: 1448
Registered: 4-2004
| | Posted on Sunday, June 19, 2011 - 11:15 am: |
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Funtime - will work but needs more than just the 7809 to work correctly
Tech237
N7AUS
God only made some many perfect head, on the rest he put hair.
|
Jerrymconners
New member
Username: Jerrymconners
Post Number: 4
Registered: 6-2011
| | Posted on Sunday, June 19, 2011 - 2:26 pm: |
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LM7809? I am not familiar with that at all. No clue! Could you be more specific as to your response? Thank you!
Before I sent this message...I Googled it and I have to read up on it. Right now I have 3 hour's of mowing my yard.....3 acres of all hill. Thanks again.
Anyone else that can suggest something? Thank you! |
Tech237
Moderator
Username: Tech237
Post Number: 1449
Registered: 4-2004
| | Posted on Monday, June 20, 2011 - 12:15 pm: |
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The LM7809 is a regulator IC that takes a votlage at l;east 3-4v above the required output and regulates. To use it you dont just connect the battery to the input, a ground and the output, it also requires (for stability) a couple of capacitors across the input and output. IT is the circuit using a 7809 that we use to regulate the voltage on the instruments of an old classic car, that I'm looking for. Simply because in my old age, I cannot recall what value of capacitor we used.
Tech237
N7AUS
God only made some many perfect head, on the rest he put hair.
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Funtimebob
Intermediate Member
Username: Funtimebob
Post Number: 282
Registered: 5-2002
| | Posted on Monday, June 20, 2011 - 5:00 pm: |
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LM78XX series fixed Positive voltage regulator. TO-220 case good for 1 amp regulated DC Voltage which uses a "minimum" of parts.
3 terminals - voltage in, voltage out, and common ground.
Since it is a small device you should be able to mount it pretty easily in the enclosure for the noise toys.
http://mipsa.p.lodz.pl/download/BazaWiedzy/zasilania/LM7805.pdf
73 De Bubba
Honorary O.F.
D.O.M. Club (Junior Auxiliary)
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