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Old 07-20-2004, 12:06 PM   #1
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hooking up new radio



I have a 73 23ft safari and had to pull the radio out.

I hooked up the new one and it works as long as I only run one light in the camper..

Anytime something else is turned on in the camper the radio kicks off although if you turn that stuff off the radio comes back on.

hope someone can help

Thanks
powd
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Old 07-20-2004, 12:17 PM   #2
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My first guess is a power quality issue.

When more than one light is on, do they burn bright enough?

Does it matter which light is on?

Do you currently have a good battery installed?

Why do you need more than one light on at once? Just kidding.

If you don't mind 20 questions, I'm sure we can get your tunes back

Tom
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Old 07-20-2004, 12:47 PM   #3
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well your right why do i need more than one light on....
there definatly is a flicker in the lights when i turn them on... it dosn't seem to matter which light it is..
almost seems like it might be draining the power from the radio..if the ceiling light in the front is on one bulb then the radio still works but once you go to two bulbs it turns off although there is still some power going to it
ofcourse when the light are off it works ... also when i turn the light on the first bulb the radio will click off then come on again.
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Old 07-20-2004, 12:53 PM   #4
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I'm going to guess you do not have a battery installed at all, and are running solely off of your Univolt (or equivalent).

The battery provides smoothing for the output of the Univolt. When on, does your radio have a lot of static?

So, if you do not have a battery installed, put one in & see if you get the same results. Any 12 volt battery will do for test purposes. If you do have a battery installed, disconnect it & measure the voltage available.

Tom
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Old 07-20-2004, 12:59 PM   #5
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thanks Tom
I do have a battery in it
Also have it hooked up to the house.
So i will disconnect it and check voltage..
Thanks again
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Old 07-20-2004, 02:17 PM   #6
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Interesting...I've had the same issue with my tv. (9" tv/vcr , ac/dc capability).

First time it happened, it turned out that my battery was definately "toast" from overcharging.

but I have a new battery now, and it seemed to be working fine in my driveway a couple of weeks ago (not plugged in to shore power). I neglected to top off the battery before going dry camping this past weekend....thought of it a few hours before departure, so I plugged in to shore power for a few hours...probably not enough to get a full charge. (and apparently, 2 hrs of driving didn't do it, either ). When I went to use it, it would randomly shut off. any fluctuation in the power would shut it down, too. only wanted to stay on with all other devices off. I didn't check the charge state at the time...figured there wasn't any point.

other devices (lights, water pump) seemed to work fine. the lights are definately dimmer on battery than when plugged into a/c, but I figure that's typical. also, I have tested and received 12.6v DC at the outlet that the TV was using, so there's no significant loss of voltage at the outlet.

maybe its a '73 23 footer thing? seriously...I'm starting to think that some of these newer electronical devices are just really, really sensitive to power quantity/quality issues, and their circuitry was designed for being used in an automobile with a running engine and steady dc output.
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Old 07-20-2004, 02:33 PM   #7
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Quote:
Originally Posted by chuck
...seriously...I'm starting to think that some of these newer electronical devices are just really, really sensitive to power quantity/quality issues, and their circuitry was designed for being used in an automobile with a running engine and steady dc output.
I think you have the ultimate answer, Chuck. The problem is that when your '73 was new, it probably would not have had any problems effectively powering these devices.

Clean connections are more important to 12 vdc circuits than 120 vac circuits due to the low voltage. [snip dry stuff about voltage lagging current]

I think what has probably occurred is that your wiring connections have oxidized with age. The wire itself is okay, but anywhere a junction is made to service a light fixture or whatever, a wire nut twists the wires together. Through age, heat, and vibration, the connections do not 'connect' as well as they once did. If you want to fix the problem, start at the fuse/circuit breaker & disconnect/clean the connections, and fuse. Then go to each power user on the circuit, and unscrew the wire caps & do whatever is necessary to make a clean connection.

Or, for a bandaid approach, simply hang a 50k mfd or better, 35 vdc electrolytic capacitor on the power lead right before it connects to the TV/radio/whatever. The capacitor can feed the device while the power winds it's way through the connections.

Tom
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Old 07-20-2004, 02:34 PM   #8
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Hey Chuck,
Quote:
Taildraggers fly better pilots
Did you happened to see on the News abt a tail-dragger that crashed in Western NH?
53FC
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Old 07-20-2004, 02:40 PM   #9
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Quote:
Originally Posted by 53FlyingCloud
Hey Chuck,

Did you happened to see on the News abt a tail-dragger that crashed in Western NH?
53FC
No Do you think his radio had bad wiring connections?
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Old 07-20-2004, 03:07 PM   #10
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Quote:
Originally Posted by tcwilliams
No Do you think his radio had bad wiring connections?
could be....mine had NO radios, and no wiring connections whatsoever. no electrical system.

less crap to go wrong, imo!
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Old 07-20-2004, 03:09 PM   #11
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Chuck,
Thanks for the info..
Looks like I need to do a little investigating to narrow in down.
Will pull the battery tonight to double check it.

Thanks
Don
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Old 07-20-2004, 03:15 PM   #12
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Hard to say`

Quote:
Originally Posted by tcwilliams
No Do you think his radio had bad wiring connections?
He crashed less than 200 yards from take-off..
The plane (40's era) was a mess..
I wished I could say the pilot was in better shape but...
I have yet to install my radio..still trying to find one for 5$..
ciao
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Old 07-20-2004, 03:16 PM   #13
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Hmm

Quote:
Originally Posted by chuck
could be....mine had NO radios, and no wiring connections whatsoever. no electrical system.
less crap to go wrong, imo!
Just whip those ole rubber band jobs up...lol
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Old 07-20-2004, 03:52 PM   #14
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yep. big rubber band. but it worked great! never had much trouble starting it. (keep the tail tied down if you're all by yourself...)

say, I just thought of something...I hope it wasn't the plane pictured. (1946 model) last I heard, it was owned by someone in NH....


just checked the registry, and yes, still owned by the same guy that bought it from my Dad years ago...Atkinson, NH.
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