David Maxwell Posted February 16, 2007 Report Posted February 16, 2007 ...on your setup. Do you have diagrams? Quote
Merle Coggins Posted February 16, 2007 Report Posted February 16, 2007 So being a total dunce when it comes to electronics, I'll ask the question and see if I can learn something. Could you also run something that runs off a small 9 volt battery in the same fashion? Something in me says that big ol' car battery would fry it, but then again...Don Don, The size of the battery would have no effect on your device. It'll only draw as much amperage as it needs. However, a 9 volt device may not get it's full voltage need with a 6 volt system, even when charging. And a 12 Volt system would be too much for it. Although if you were running a 12v system you could buy a power adapter for your device that'll have the proper 9v output. Merle Quote
FMSPEED49 Posted February 17, 2007 Author Report Posted February 17, 2007 The radio is designed to use 6 "C" cell batteries, Brand new they are 1.5 volts per battery. So it is designed for 9 volts , yet seems to operate at 6 fine, and at 7-8 while charging also. I have decided to run this set up for a few more hours (of actual cd play time) , then I will clean it up and take pics for you guys. I am going to look around and see if I have anything that runs on a 9 volt, if i do , It will be sacrificed to the 6volt positve ground God's. Quote
FMSPEED49 Posted February 17, 2007 Author Report Posted February 17, 2007 Low voltage at worst seems that it would not alow it to work, just as if the small 9 volt was dying, high voltage on the other hand is when you get smoke and light shows. Quote
FMSPEED49 Posted February 17, 2007 Author Report Posted February 17, 2007 I understand there is a chance of smoking this thing, but the whole reason for the experiment was to not have to buy step ups, or wire in other electrical parts,buy car radios or run an extra battery or jump battery. Just a $29.00 radio, 3 feet of wire I had laying around and a $2.00 inline fuse. Quote
Normspeed Posted February 17, 2007 Report Posted February 17, 2007 FMSpeed49, if you get smoke and light shows, post some pics. Quote
bob_amos Posted February 17, 2007 Report Posted February 17, 2007 What ever you do.. don't let the smoke out. As a fellow mechanic, you are aware that it is the SMOKE that makes electrical parts operate. Why's that, you ask? Well think of it.. Once the smoke leaves the component it doesn't work anymore. So, letting the smoke out ruins the unit... LOL Quote
greg g Posted February 17, 2007 Report Posted February 17, 2007 most regular dry cells are 1.5 volts, so a component with 4 batteries would be a 6 V unit. So if you can power it by soldering some wires to the battery connections, then it would make sense to connect it to one of those accessory plugs for the cigarette lighter. I believe you would wire it inversely to a 12 V, so the neg post wire would go to the conection for the center post of the acc plug and the positive would go to the conection for the outside connection. Will be rummaging through my old boom boxes later..... Quote
Niel Hoback Posted February 17, 2007 Report Posted February 17, 2007 I used a cheap 4AA powered AM-FM from the local Big Lots mounted on wood in a spare 802 case. The 802 knob shafts are connected to the radio with flexible tubing. the power is wired with the light thru the top button of the 802. Antennae wire tied to the antennae lead-in. Good enough for who its for. This means anyone can do it. Quote
James_Douglas Posted February 18, 2007 Report Posted February 18, 2007 ...on your setup. Do you have diagrams? David, Here is what it looks like.James Whats in the box: The wiring: Quote
David Maxwell Posted February 18, 2007 Report Posted February 18, 2007 I'll look into that. While I have a really nice sounding system in my P15, I would really prefer something more simple that plays through the original radio. My radio was fully restored and works well, but I like my iPod mixes; commercial free and days of uniterupted music of my choice! Quote
Guest Gerhard Tieseler Posted February 18, 2007 Report Posted February 18, 2007 I'm really interested in the AM modulator as well. Between me and my better half, we have six cars and 4 of them have working AM radios. But they don't have oldie stations anymore! A converter like that would save us from monotony and traffic insanity! Do you have a schematic and/or parts list? Thanks! Quote
James_Douglas Posted February 19, 2007 Report Posted February 19, 2007 Some of you know from past postings my foray into trying to make a box that allows those of us with original electrical and radios to have nice tunes. For the rest of you, here goes the tale. Working with a person who builds Am modulators for the antique radio crowd I had him make a prototype of an AM modulator that would work on 6 to 12 volts and positive or negative ground. The unit had to be high quality with gain and sensitivity controls. It also had to have the ability to select the frequency which it would broadcast on. It also had to not interfere with the stock radios ability to play normally. After about a year of development and testing, we were ready to market. We needed about 25 people to commit to an order so that we could have the circuit boards manufactured. They were going to cost about $$275 each at retail. I could not get enough people interested, so the project was dropped. If I were to make some up by hand the cost of my time would make them very expensive. That's the story. Best, James Too bad...the iPod and the modulator are made for each other. Quote
David Maxwell Posted February 19, 2007 Report Posted February 19, 2007 ...it won't be happening. Did you post the idea on other car forums as well? I still think there is more than enough of a market our there for this. Quote
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