 Need to Power Car Radio on the Bench Top, 110v to 12v converter |
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| gcrotvik |
 Dec 31 2016, 02:44 PM
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#1
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Member  Group: Members Posts: 360 Joined: 16-December 09 From: Portland Oregon Member No.: 11,134 Region Association: Pacific Northwest  |
Trying to find a 110 volt power supply to power a 12 volt car radio for installation and sound testing. Looked on-line and need a recomendation as to what to use/buy.
Thanks, Greg |
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| Steve |
Dec 31 2016, 02:46 PM
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#2
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914 Guru Group: Members Posts: 5,584 Joined: 14-June 03 From: Orange County, CA Member No.: 822 Region Association: Southern California 
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I bought a 12v 5 amp power supply at Radio Shack many years ago. Works great for stuff like that.
Also check out ham radio outlet. |
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| Mike Fitton |
Dec 31 2016, 04:07 PM
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#3
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Senior Member Group: Members Posts: 609 Joined: 13-May 11 From: Chicago Area Member No.: 13,069 Region Association: Upper MidWest
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+1 on the Radio Shack one.
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| Mark Henry |
Dec 31 2016, 04:36 PM
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#4
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
(IMG:style_emoticons/default/blink.gif) Ummmm.....a 12v Battery charger. (IMG:style_emoticons/default/bye1.gif)
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| Gunn1 |
Dec 31 2016, 04:49 PM
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#5
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Senior Member Group: Members Posts: 1,021 Joined: 14-February 16 From: Minnesota Member No.: 19,670 Region Association: None |
Don't think you will get a "clean" sound by powering with a standard Battery charger. They tend not filter out the AC to well.
Other than a more expensive filtered power supply, a fully charged 12 volt battery with NO charger on it is the best way to get the cleanest power source (only DC, with no stray AC sine) your radio will sound just like it does in the car. JMO |
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| Steve |
Dec 31 2016, 05:11 PM
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#6
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914 Guru Group: Members Posts: 5,584 Joined: 14-June 03 From: Orange County, CA Member No.: 822 Region Association: Southern California
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QUOTE(Gunn1 @ Dec 31 2016, 02:49 PM)  Don't think you will get a "clean" sound by powering with a standard Battery charger. They tend not filter out the AC to well. Other than a more expensive filtered power supply, a fully charged 12 volt battery with NO charger on it is the best way to get the cleanest power source (only DC, with no stray AC sine) your radio will sound just like it does in the car. JMO (IMG:style_emoticons/default/agree.gif) The radio shack and ham radio 12v power supplies are regulated and highly filtered to remove AC hum from the radio. |
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| jfort |
Dec 31 2016, 08:37 PM
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#7
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Senior Member Group: Members Posts: 1,135 Joined: 5-May 03 From: Findlay, OH Member No.: 652 Region Association: Upper MidWest
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I found a 110>12VDC power supply on line a couple of years ago. Comes in handy.
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| PanelBilly |
Dec 31 2016, 08:58 PM
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#8
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914 Guru Group: Members Posts: 5,805 Joined: 23-July 06 From: Kent, Wa Member No.: 6,488 Region Association: Pacific Northwest
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Use the battery out of your car
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| Mark Henry |
Dec 31 2016, 10:27 PM
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#9
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
QUOTE(Steve @ Dec 31 2016, 06:11 PM) QUOTE(Gunn1 @ Dec 31 2016, 02:49 PM) Don't think you will get a "clean" sound by powering with a standard Battery charger. They tend not filter out the AC to well. Other than a more expensive filtered power supply, a fully charged 12 volt battery with NO charger on it is the best way to get the cleanest power source (only DC, with no stray AC sine) your radio will sound just like it does in the car. JMO (IMG:style_emoticons/default/agree.gif) The radio shack and ham radio 12v power supplies are regulated and highly filtered to remove AC hum from the radio. Well excuse me.....who gives a flying fuch (IMG:style_emoticons/default/rolleyes.gif) The OP said he want's to test the system in his car...you know that thing that makes all kinds of loud aircooled type noises when it is actually running. He didn't say anything about wanting audiophile quality sound out of the thing. AND if he does want audiophile quality sound what da fuch is he doing fuching with a car stereo for? BTW a buddy of mine has powered the same old pioneer deck off of his battery charger for the last 30 years in his little one car garage. Works just fine, no hum, at least not enough to worry about in a garage. (IMG:style_emoticons/default/shades.gif) |
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| 914Sixer |
Dec 31 2016, 10:43 PM
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#10
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914 Guru Group: Members Posts: 8,880 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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Computer power supply has 12v rail. I use one from our crane games. I will post picture tomorrow. I can test 12v,24v and 48 volt with the set up.
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| Mark Henry |
Dec 31 2016, 10:58 PM
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#11
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
QUOTE(914Sixer @ Dec 31 2016, 11:43 PM) Computer power supply has 12v rail. I use one from our crane games. I will post picture tomorrow. I can test 12v,24v and 48 volt with the set up. Yes, you can use that as well, the LED strip lights I use in my blasting cabinet I run on an old power supply. I hit all my friends for their old PC's, just to rob the power supplies out of them. Same with wall warts. BTW they also give you 3 and 5V I like free (IMG:style_emoticons/default/biggrin.gif) |
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| Steve |
Dec 31 2016, 11:06 PM
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#12
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914 Guru Group: Members Posts: 5,584 Joined: 14-June 03 From: Orange County, CA Member No.: 822 Region Association: Southern California
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QUOTE(Mark Henry @ Dec 31 2016, 08:27 PM) QUOTE(Steve @ Dec 31 2016, 06:11 PM) QUOTE(Gunn1 @ Dec 31 2016, 02:49 PM) Don't think you will get a "clean" sound by powering with a standard Battery charger. They tend not filter out the AC to well. Other than a more expensive filtered power supply, a fully charged 12 volt battery with NO charger on it is the best way to get the cleanest power source (only DC, with no stray AC sine) your radio will sound just like it does in the car. JMO (IMG:style_emoticons/default/agree.gif) The radio shack and ham radio 12v power supplies are regulated and highly filtered to remove AC hum from the radio. Well excuse me.....who gives a flying fuch (IMG:style_emoticons/default/rolleyes.gif) The OP said he want's to test the system in his car...you know that thing that makes all kinds of loud aircooled type noises when it is actually running. He didn't say anything about wanting audiophile quality sound out of the thing. AND if he does want audiophile quality sound what da fuch is he doing fuching with a car stereo for? BTW a buddy of mine has powered the same old pioneer deck off of his battery charger for the last 30 years in his little one car garage. Works just fine, no hum, at least not enough to worry about in a garage. (IMG:style_emoticons/default/shades.gif) Too funny!!! You Canadians are awefully sensitive up there. (IMG:style_emoticons/default/poke.gif) (IMG:style_emoticons/default/flag.gif) (IMG:style_emoticons/default/beerchug.gif) |
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| Costa05 |
Dec 31 2016, 11:32 PM
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#13
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Member Group: Members Posts: 320 Joined: 27-October 16 From: Phoenix, Arizona Member No.: 20,535 Region Association: Southwest Region
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Ditto on the online power supply. Mine is a Pyramid PS8KX. Only 6 amp 12v output but was less than $40. Thats 72 watts of high end 12v power!!! (IMG:style_emoticons/default/cheer.gif)
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| bulitt |
Jan 1 2017, 03:14 AM
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#14
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Achtzylinder Group: Members Posts: 4,188 Joined: 2-October 11 Member No.: 13,632 Region Association: South East States |
2- 6v lantern batteries.
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| Gunn1 |
Jan 1 2017, 08:57 AM
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#15
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Senior Member Group: Members Posts: 1,021 Joined: 14-February 16 From: Minnesota Member No.: 19,670 Region Association: None |
No need to get stirred up......OP asks "Trying to find a 110 volt power supply to power a 12 volt car radio for installation and sound testing."
The buzzing from a standard 12 volt battery charger will not give a true representation of what the radio will sound like when it is ultimately mounted in the car. I would definitely not recommend powering a vintage Blaupunkt radio with this battery charger set up. But people will do what they do. Cheap is OK sometimes, but very often you get what you pay for. (IMG:style_emoticons/default/flag.gif) |
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| stugray |
Jan 1 2017, 01:03 PM
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#16
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Advanced Member Group: Members Posts: 3,824 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None |
I use a standard battery charger for things like that, but what do I know, I'm just an electrical engineer.....
If worried about overvoltage or noise, put a battery on it at the same time. I Also use PC power supplies, but when using them out of the PC case, you will need to short (temporarily) the blue wire to the chassis to get it to turn on. I found some aviation quality adjustable DC power supplies at a salvage yard & bought two for $40. (they are worth about $1200 ea.) |
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| Mark Henry |
Jan 1 2017, 01:19 PM
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#17
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
QUOTE(stugray @ Jan 1 2017, 02:03 PM) I use a standard battery charger for things like that, but what do I know, I'm just an electrical engineer..... If worried about overvoltage or noise, put a battery on it at the same time. Thanks Stu Been working on aircooled cars since I was a teen, to troubleshoot all electrical you can power everything by using a battery charger. You do need to pull the power wire off the coil or you will fry the points and some aftermarket pickups like the pertronix. QUOTE I Also use PC power supplies, but when using them out of the PC case, you will need to short (temporarily) the blue wire to the chassis to get it to turn on. Or just twist it onto a ground wire (IMG:style_emoticons/default/wink.gif) BTW I wasn't being pissy, just I see no reason to tell someone to go spend money when they likely have something that does the job right in front of them. |
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| 914GT |
Jan 1 2017, 01:21 PM
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#18
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Senior Member Group: Members Posts: 1,100 Joined: 11-October 04 From: Tucson Member No.: 2,923 Region Association: Southwest Region |
I use my cheap Harbor Freight portable power pack for 12V radio or amplifier bench testing. |
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| gcrotvik |
Jan 1 2017, 02:15 PM
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#19
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Member Group: Members Posts: 360 Joined: 16-December 09 From: Portland Oregon Member No.: 11,134 Region Association: Pacific Northwest |
Thanks for the feedback. My stereo install isn't an audiophile setup but more than the standard 2 speaker in the stock location setup. I'm testing secondary speaker and hidden satellite antenna locations for a second car.
I was also hoping to find a power supply to mimic a fully charged battery to power my chassis harness for testing of all components while installing it (turn signals, headlight motors, fans, etc.). I found many 110VAC to 12VDC power supplies on-line but wasn't sure they would suit my needs as I didn't want to blow up my chassis harness during testing. I'm a network and software engineer, not an electrical engineer so I'm out of my element with power. Here is the unit I found: http://www.ebay.com/itm/282264455526?_trks...K%3AMEBIDX%3AIT Greg |
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| stugray |
Jan 1 2017, 02:38 PM
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#20
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Advanced Member Group: Members Posts: 3,824 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None |
QUOTE(gcrotvik @ Jan 1 2017, 01:15 PM) Thanks for the feedback. My stereo install isn't an audiophile setup but more than the standard 2 speaker in the stock location setup. I'm testing secondary speaker and hidden satellite antenna locations for a second car. I was also hoping to find a power supply to mimic a fully charged battery to power my chassis harness for testing of all components while installing it (turn signals, headlight motors, fans, etc.). I found many 110VAC to 12VDC power supplies on-line but wasn't sure they would suit my needs as I didn't want to blow up my chassis harness during testing. I'm a network and software engineer, not an electrical engineer so I'm out of my element with power. Here is the unit I found: http://www.ebay.com/itm/282264455526?_trks...K%3AMEBIDX%3AIT Greg That one looks good. I had to check because some LED drivers are constant current. This one appears to be constant voltage (current varies to whatever up to 10A), so it should work perfectly. |
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