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 Page 1 of 2 12
Username Post: 6V to 12 VOLT CONVERSION        (Topic#196833)
Smokey 
Senior Site Adminstrator
Posts: 17447
Smokey
Age: 69
Loc: "Small town USA"
Reg: 12-06-99
08-19-08 08:45 PM - Post#1503322    

A BIG Thanks to Bob Hayden for his hard work on this:

http://chevy.oldcarmanualproject.com/miscellaneous...



 
RadioGuy 
Contributor
Posts: 257
RadioGuy
Loc: Victoria BC Canada
Reg: 12-24-01
04-24-09 12:26 PM - Post#1684158    
    In response to Smokey

I am thinking you are going to have to do a lot more to your 6 volt tube radio than just replace the dial bulb! I know in the old days you would try to drop the voltage to the radio with a heavy duty resistor but I certainly don't recommend that today. There are qualified people who can convert your 6 volt radio to a 12 volt radio. You have two chcices.

Antique Automobile Radio in Florida http://www.radiosforoldcars.com/
has an extensive dealer network that can install their 12 volt FM conversion internally. This is a high quality product that allows you to run a stock or custom speaker configuration. Everything internally is removed except the antenna input and the tuner. Exterior look remains completely stock. Costs run $400 - $500.

The second alternative is to find a radio service centre that is fully qualified to convert the radio to 12 volt and maintain it as a tube radio. There are several things that must be done including changing the vibrator and transformer. Most 6 voilt tubes have a 12 volt equivalent but there are load differences and the new tubes usually need to be balanced with an additional resistor or two to perform to peak capability. Cost is likely in the same range as the conversion, more if the radio is original and needs some up-grading to modern capacitors etc.

Actually a third alternative would be to buy a repro radio from Antique Automobile or one of their dealers.

formerly "seshea"
Stephen Shea
Victoria BC
1957 Belair 2 dr hdtp


 
arnieg141 
Dedicated Enthusiast
Posts: 6355
arnieg141
Loc: nj
Reg: 10-06-08
05-05-09 02:31 PM - Post#1691847    
    In response to RadioGuy

go with the voltage steep down for a couple of bucks and they sell fm converters for abot $30.00 that just plug in your anteni wire and tuck under dash or buy an am/fm/cd sterio they sell $35.00 up and stike it in glove box or under dash don't just waste your money unless your building a 100 point show car

GET ER DONE .. AS I GET OLDER I LIKE FAST CARS I CAN STILL DRIVE. AND VERY SLOW WOMEN I CAN CATCH while still able..arnie garrison


Edited by arnieg141 on 05-05-09 02:50 PM. Reason for edit: No reason given.

 
Royer 
Needs to Get Out More Member
Posts: 11411

Loc: Bloomfield Hills, Michiga...
Reg: 09-25-01
05-12-09 10:14 AM - Post#1696316    
    In response to Smokey

Had you considered the alternative of a small six-volt motorcycle/lawn tractor battery in the trunk just for powering the radio? Much cheaper than any of the alternatives mentioned so far, and charging with a trickle charger once a month or so should be plenty.

Royer



 
Keith_Knox 
Moderator and "16th Year" Gold Supporting Member
Posts: 5808
Keith_Knox
Age: 76
Loc: Napa, Ca USA
Reg: 04-02-00
05-12-09 08:59 PM - Post#1696675    
    In response to Royer

Good to see you post Royer.
People have been wondering where you were.



1948 Chevy Fleetmaster Coupe Purchased 6/2010. Stock with rebuilt 52 216 installed May 1966.
1946 Chevy 1/2 ton pickup, stock. Purchased 11/18/17.
1962 Ranchero Purchased 4/2017 221 V8 Automatic.
2013 F150 Crew Cab


 
chaimv 
Forum Newbie
Posts: 38

Reg: 11-27-08
05-30-09 02:31 PM - Post#1707625    
    In response to Keith_Knox

Hi Guys

I was wondering can i use the origional ignition swith and starer button from my 6V system when i do the conversion to 12V or do i need a new swithc

thanks



 
arnieg141 
Dedicated Enthusiast
Posts: 6355
arnieg141
Loc: nj
Reg: 10-06-08
05-30-09 02:35 PM - Post#1707629    
    In response to chaimv

YES ON BOTH

GET ER DONE .. AS I GET OLDER I LIKE FAST CARS I CAN STILL DRIVE. AND VERY SLOW WOMEN I CAN CATCH while still able..arnie garrison


 
Bob_Hayden 
Dedicated Enthusiast
Posts: 6809
Bob_Hayden
Age: 71
Loc: Indianapolis, In. USA
Reg: 07-17-01
05-30-09 08:26 PM - Post#1707854    
    In response to arnieg141

LOL Yes, on using the original ignition switch and button. No you don't need a new switch.

Bob Hayden's 54 Chevy, 350 Engine with TH400 Tranny and 94 4X4 Blazer Rear End with 3:23 gears.(FINISHED PICS) </a> My 54 Albums

2014 Silverado Double cab (BLUE)


 
arnieg141 
Dedicated Enthusiast
Posts: 6355
arnieg141
Loc: nj
Reg: 10-06-08
05-30-09 11:45 PM - Post#1707923    
    In response to Bob_Hayden

what he said

GET ER DONE .. AS I GET OLDER I LIKE FAST CARS I CAN STILL DRIVE. AND VERY SLOW WOMEN I CAN CATCH while still able..arnie garrison


 
chaimv 
Forum Newbie
Posts: 38

Reg: 11-27-08
05-31-09 07:29 AM - Post#1707997    
    In response to arnieg141

thanks



 
WARCOY99 
Member
Posts: 22

Loc: ROUND ROCK,TX
Reg: 07-08-05
06-05-09 11:52 AM - Post#1711615    
    In response to chaimv

DO you have a diagram of the wiring for a 6 to 12 volt? my car works fine, but i have to unhook the battery or the battery dies when off. I;m not sure what it is but its not that anything is left on.



 
raycow 
Honored Member
Posts: 27348
raycow
Loc: San Francisco, CA
Reg: 11-26-02
06-05-09 04:39 PM - Post#1711765    
    In response to WARCOY99

Disconnect your alternator when you shut the engine off, including the plug-in connector, and see what happens then.

Ray

Those who choose an automatic transmission want transportation. Those who choose a manual transmission want to drive.


 
KaelFarmer 
Senior Member
Posts: 1005

Loc: Eau Claire, WI
Reg: 03-28-02
07-01-09 10:15 AM - Post#1727103    
    In response to raycow

To get your car to stop running when turning off the ignition switch, use a DA plug for the alternator. It looks like the standard plug for the alternator, except it has a diode built into the excitor wire. Many aftermarket retailer sell them for about $20, but if you have a starter/ alternator rebuilding service locally you can probably get one for about $10.

It will have 2 wires (one red with a ring terminal and either a black or yellow one). Connect the ring terminal to the battery post on the back of the alternator. Connect the other wire to a switched positive conection (positive terminal of the coil works well)

Kael



 
WARCOY99 
Member
Posts: 22

Loc: ROUND ROCK,TX
Reg: 07-08-05
07-01-09 11:41 AM - Post#1727155    
    In response to raycow

thanks i'll try it...sorry for the delay but i never got noticed that you replied.



 
OLD CAR 
Senior Member
Posts: 626

Loc: OREGON
Reg: 05-29-01
10-16-09 12:15 PM - Post#1789314    
    In response to arnieg141

I use a volt-a drop which is a now called a "voltage reducer" One wire off the battery to the unit mounted in front of the radiator on a bracket to disapate the heat when Iam driving and then a wire to a fuse and then to the radio and that been working great for years now.
www.fillingstation.com #FS-129.




 
54infrance 
Forum Newbie
Posts: 10

Loc: france brittany florida n...
Reg: 02-27-10
03-08-10 12:59 PM - Post#1876255    
    In response to OLD CAR

Do you need to change anything on the convertible motor or switch when going from 6 to 12v?
Chris Jones



 
ChrisQ 
Forum Newbie
Posts: 48
ChrisQ
Loc: Washington, DC
Reg: 12-11-09
03-18-10 11:36 AM - Post#1882233    
    In response to 54infrance

This is probably dumb question. I have a marine battery in belair right now. Is that bad? Is there a paticular 12Volt battery I should be getting?



 
arnieg141 
Dedicated Enthusiast
Posts: 6355
arnieg141
Loc: nj
Reg: 10-06-08
04-21-10 01:10 AM - Post#1902198    
    In response to ChrisQ

MUST READ ON GAS GAUGE http://www.fifthaveinternetgarage.com/tech_tips/te...

GET ER DONE .. AS I GET OLDER I LIKE FAST CARS I CAN STILL DRIVE. AND VERY SLOW WOMEN I CAN CATCH while still able..arnie garrison


 
OLD CAR 
Senior Member
Posts: 626

Loc: OREGON
Reg: 05-29-01
05-15-10 04:41 PM - Post#1915417    
    In response to 54infrance

I dont think so use a seperate wire from the voltage reducer run it through a switch and than the top motor it will have a circuit of its own.



 
ralph47 
"4th Year" Silver Supporting Member
Posts: 2335
ralph47
Age: 67
Loc: new franklin, ohio
Reg: 10-28-08
05-15-10 05:18 PM - Post#1915448    
    In response to OLD CAR

watch using a voltage reducer with a high amp load like that...12v to that motor may not hurt it

54 Chevy Handyman Wagon
48 Chevy Pick Up
39 Chevy Coupe
62 Olds F85 Cutlass Convertible

http://s370.photobucket.com/albums/oo148/ralph47_ p...


 
BIGDADDY5 
Forum Newbie
Posts: 4

Reg: 05-24-10
05-24-10 09:39 PM - Post#1920201    
    In response to ralph47

I'm new here and new to fixing up cars. I have no idea what i'm doing. I want to rewire a 1949 fleetline from a 6v to a 12v. can you tell me where to start.



 
ralph47 
"4th Year" Silver Supporting Member
Posts: 2335
ralph47
Age: 67
Loc: new franklin, ohio
Reg: 10-28-08
05-25-10 05:47 AM - Post#1920276    
    In response to BIGDADDY5

start with the other posts here..and pay attention to gas gauge postings.

12 v generator and regulator..although it seems a lot when changing to 12v switch to internal regulated alternator. of course all the bulbs, radio voltage reducer..maybe a 12v starter solenoid..not all change...starter motor should be ok, some say heater motor will be fine too...don't quote me on that though.



54 Chevy Handyman Wagon
48 Chevy Pick Up
39 Chevy Coupe
62 Olds F85 Cutlass Convertible

http://s370.photobucket.com/albums/oo148/ralph47_ p...


 
BIGDADDY5 
Forum Newbie
Posts: 4

Reg: 05-24-10
05-25-10 09:58 AM - Post#1920375    
    In response to ralph47

Thanks



 
johnnymv1 
Forum Newbie
Posts: 70
johnnymv1
Age: 33
Loc: Phoenix, AZ
Reg: 04-15-11
06-05-11 01:01 AM - Post#2099490    
    In response to ralph47

So im getting started on my 12v conversion and i have a couple questions. First of all im keeping the generator getting it converted to 12v to keep the original look so heres my questions does my 54 belair have a ballast resistor and if so where is it, I need a 12v coil with an internal ballast resistor does anyone have a part number for me? also need the part number for a 12v voltage regulator Or can i just use the parts from a 55 belair? I know you fine getelmen can help thanks in advance.



 
h0tr0d18 
Forum Newbie
Posts: 77

Loc: Fort Mcmurray, Alberta
Reg: 02-28-11
06-07-11 07:58 AM - Post#2100434    
    In response to johnnymv1

Did you ever get an answer on this johnny? I am looking to convert my 53 to 12V and I have a 12V generator, just curious if I need anything else to run that generator?



 
Dean50 
"11th Year" Gold Supporting Member
Posts: 1197
Dean50
Loc: Detroit area
Reg: 01-02-07
06-08-11 04:27 PM - Post#2101114    
    In response to johnnymv1

I'm sure you can use any generic 12V stuff. My car was 12V when I got it and has a small coil with internal ballast and Delco-Remy 12V voltage regulator. I would think any NAPA or such would have the parts. The list at the beginning of the thread is pretty thorough.
Good luck. Don't forget about changing all your bulbs, flasher etc.

Dean50



 
OldJules 
Forum Newbie
Posts: 10

Reg: 05-27-10
07-24-11 09:50 AM - Post#2117422    
    In response to Royer

I would sure like to hear of a good solution to the gas gauge problem in the 6V to 12V swap. I'm aware of the voltage reducer. I had a reducer on mine and it apparently burned out or whatever they do and allowed 12V to the reciever, so now the reciever shows full all the time, I assume it's shot. Does the 6V sender work if I have the receiver converted to 12V.



Edited by OldJules on 07-24-11 10:05 AM. Reason for edit: No reason given.

 
Zombie Dave 
Member
Posts: 271

Age: 50
Loc: Wichita, Kansas
Reg: 08-20-05
09-26-11 07:20 PM - Post#2141184    
    In response to OldJules

Is this the same for 52 Chevy conversion ? I have a 52 and it's been converted. I'm just not sure yet that all the steps were taken and parts were swapped. Fuel gauge doesn't work and something is draining the battery.

1964 Impala
305 Engine


Edited by ratrod67 on 09-26-11 07:21 PM. Reason for edit: No reason given.

 
worthop 
Forum Newbie
Posts: 1

Loc: N.Y.C.
Reg: 11-08-11
11-08-11 08:48 PM - Post#2156009    
    In response to Zombie Dave

I think I may be missing something regarding the headlight wiring....it looks like the headlight harness is connected to the Batt terminal of the voltage regulator....what did you guys do with that?



 
Rukee 
Forum Newbie
Posts: 4

Reg: 02-01-12
02-01-12 12:35 PM - Post#2185960    
    In response to worthop

Hey guys, first post, please bare with me.
Have a `49 Deluxe 4dr here that someone put in a 350 csb w/single wire alternator. Trying to convert the system to 12v, have all the bulbs swapped but don't know were to put the reducer for the gas gauge. I can hardly see behind the dash at all!! Is there a convenient location to wire it in?? Also the parts list showed a IR4 from NAPA for the gas gauge, but it's discontinued, they gave me a IR1 instead, is that going to be an issue?



Edited by Rukee on 02-01-12 12:36 PM. Reason for edit: No reason given.

 
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