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Username Post: Stock 1950 Radio        (Topic#341699)
Dean50 
"10th Year" Gold Supporting Member
Posts: 1075
Dean50
Loc: Detroit area
Reg: 01-02-07
01-05-17 10:57 AM - Post#2669448    

Happy New Year to everyone.
I scored this stock 1950 radio a couple of years ago, and now I can't remember the wiring setup. I know the tuner plugs into the top of the section with the tubes with a connector. Regarding the two wires coming from the tuner section: One power wire and one ground wire (I think)?
Can someone explain which is which please? The one going out the other way is for the dial light. I just want to see if I can get it to work. I remember the tuner dial did light up and the thing hummed when I bought it.
Thanks,
Dean

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Attachment: radioIMAG4438.jpg (125.61 KB) 7 View(s)




Dean50



 

RAM_51 
Silver Supporting Member
Posts: 4234
RAM_51
Loc: Yakima, WA. USA
Reg: 12-28-02
01-05-17 11:17 AM - Post#2669454    
    In response to Dean50

Given the color scheme of the radio, it is actually a '49 but that's not a big deal...they are identical aside from the color. One wire would be the power wire, the other would be the light wire and should have a socket on it to plug into the top dial houising. Radio brackets served as the ground.

Let me update this...I think I see the wire for your dial in your photos....so, one would be the power...and the other wire would be the wire for getting power to your dial light. You can set it so that the radio light comes on when you turn your lights on, or when you turn the radio on...your choice.

1951 Fleetline
1951 Fleetline DeLuxe 2 DOOR SEDAN
1951 Styleline Special BUSINESS COUPE (Shadow Gray)
1953 6500 Dump Bed (Oxidized Red, Formally Juniper Green)
1950 Styleline DeLuxe 4 DOOR SEDAN (Mist Green)


Edited by RAM_51 on 01-05-17 11:23 AM. Reason for edit: No reason given.

 
Dean50 
"10th Year" Gold Supporting Member
Posts: 1075
Dean50
Loc: Detroit area
Reg: 01-02-07
01-05-17 11:34 AM - Post#2669460    
    In response to RAM_51

So those two loose wires both get power and the ground comes from the unit itself.
The radio was represented as a '50 to me. I didn't know as I have the radio delete plate in my car. So '49 had Ivory knobs and '50 had Gray. I wondered about that when I checked catalogs for new knobs, mine sure looked Ivory to me. That explains that.
Thanks Ram_51!

Dean50



 
RAM_51 
Silver Supporting Member
Posts: 4234
RAM_51
Loc: Yakima, WA. USA
Reg: 12-28-02
01-05-17 12:07 PM - Post#2669465    
    In response to Dean50

The '49s had a painted brown case I've noticed while the '50s are usually unpainted metal.

1949 Custom De Luxe Push Button Control Radio is part# 986240, you can check that against the metal tag I see on your radio, while the '50 is 986390. The '49 had a brown dial and tan knobs while the '50 had both gray face and knobs.



1951 Fleetline
1951 Fleetline DeLuxe 2 DOOR SEDAN
1951 Styleline Special BUSINESS COUPE (Shadow Gray)
1953 6500 Dump Bed (Oxidized Red, Formally Juniper Green)
1950 Styleline DeLuxe 4 DOOR SEDAN (Mist Green)


 
Dean50 
"10th Year" Gold Supporting Member
Posts: 1075
Dean50
Loc: Detroit area
Reg: 01-02-07
01-06-17 08:08 AM - Post#2669618    
    In response to RAM_51

It's 986240. Thanks again.

Dean50



 
Kyle G. 
Forum Newbie
Posts: 13

Reg: 11-29-15
01-06-17 04:49 PM - Post#2669715    
    In response to Dean50

This here is the schematic for the radio. Best I can see, there should be a total of 2 wires and a cable. The cable should contain 3 wires of which, the brown wire is 6v power, the green wire is coupled through a capacitor to the plate of the demodulator (the audio signal before final amplification), and the red wire is the high voltage plate bias. One wire is the main 6v supply to the radio (needs to be fairly large for the 6.5 amperage draw), the other is the dial light lead which connects to the light switch. Of course that third wire going to the left in the photo would go to the dial light?
http://chevy.oldcarmanualproject.com/radios/pdf/6D...



Edited by Kyle G. on 01-06-17 05:04 PM. Reason for edit: No reason given.

 
Bel Air kiwi 
"2nd Year" Silver Supporting Member
Posts: 2748
Bel Air kiwi
Loc: New Zealand
Reg: 04-24-14
01-06-17 04:59 PM - Post#2669718    
    In response to Kyle G.

Hi Guys, Ram, you never cease to amaze me with your detail knowledge. The one thing I learned about old valve type stuff is if you don't know exactly how to wire them up and test don't do it.
Because if you play around to see what happens and make a mistake, if it was good, it ain't going to be now.
Radio valves don't take it and they can be hard to get and expensive.

That's about the sum total of what I know about car audio.

Cheers Kiwi

48 3100 RHD, 51 Deluxe 4DR RHD, 51 Bel Air parts car, 52 Bel Air P-Glide LHD. Others 23T, 32 Tudor, 58 Edsel pacer 4DR HDT, 79 F250 351C RHD. 69,70,82 Capri. No mobile, no TV, and no Jap cars


Edited by Bel Air kiwi on 01-06-17 05:00 PM. Reason for edit: No reason given.

 
Dean50 
"10th Year" Gold Supporting Member
Posts: 1075
Dean50
Loc: Detroit area
Reg: 01-02-07
01-06-17 05:30 PM - Post#2669727    
    In response to Kyle G.

Thanks Kyle,Yes the left wire in the picture goes to the dial light socket.

Dean50



 
Kyle G. 
Forum Newbie
Posts: 13

Reg: 11-29-15
01-06-17 05:59 PM - Post#2669733    
    In response to Dean50

Ok, that's good. I wasn't sure what the '49 push button did as I couldn't remember a wire going to to the dial light on my '50 manual tuner. I just removed the radio out of my car to have a look inside of it and sure enough the dial light bulb and wiring are completely internal.



 
Cruzin Okie 
Contributor
Posts: 628
Cruzin Okie
Loc: Jay, Oklahoma
Reg: 10-26-11
01-09-17 08:08 PM - Post#2670371    
    In response to Dean50

Dean, I've got a 50 model radio laying on a shelf. I you are interested in it I will take a picture of it this week end when I'm over at the other house. Just let me know

Johnnie

1950 styleline deluxe sports coupe, 350 cid, TH 400, nova rear end. Gen IV Vintage air. SOLD!
1953 210 4 Door, 235 with Powerglide. All original except for the 1954 hood bird.

John 3:16



 
RAM_51 
Silver Supporting Member
Posts: 4234
RAM_51
Loc: Yakima, WA. USA
Reg: 12-28-02
01-09-17 09:26 PM - Post#2670380    
    In response to Kyle G.

  • Kyle G. Said:
I just removed the radio out of my car to have a look inside of it and sure enough the dial light bulb and wiring are completely internal.


You got my curiosity up Kyle. Indeed the dial light on the manual tune radio is inside. I would suspect with both radios, they'd almost have to be dropped out of the dash to change the light but the manual tune radio looks as though it would have to be further disassembled for a dial light change.



1951 Fleetline
1951 Fleetline DeLuxe 2 DOOR SEDAN
1951 Styleline Special BUSINESS COUPE (Shadow Gray)
1953 6500 Dump Bed (Oxidized Red, Formally Juniper Green)
1950 Styleline DeLuxe 4 DOOR SEDAN (Mist Green)


 
nick3092 
Forum Newbie
Posts: 8

Reg: 06-29-15
01-10-17 01:36 PM - Post#2670466    
    In response to RAM_51

Just a word of warning, it's not wise to run these old radios without getting them refurbished first. After 67 years the capacitors have dried out and can short out.

The biggest issue is the electrolytic can capacitor and the buffer capacitor for the vibrator. If either of those fail, they will take the power transformer out in short order. But all the other old wax/paper caps should be replaced as well.





 
Dean50 
"10th Year" Gold Supporting Member
Posts: 1075
Dean50
Loc: Detroit area
Reg: 01-02-07
01-10-17 07:29 PM - Post#2670521    
    In response to Cruzin Okie

Hi Johnnie,
Yes, thanks. I'm just curious at this point. It's not going into the car but I'd just like to see the proper hookups.

Dean50



 
Cruzin Okie 
Contributor
Posts: 628
Cruzin Okie
Loc: Jay, Oklahoma
Reg: 10-26-11
01-10-17 08:43 PM - Post#2670530    
    In response to Dean50

Ok, Dean. If I can help let me know.

Johnnie

1950 styleline deluxe sports coupe, 350 cid, TH 400, nova rear end. Gen IV Vintage air. SOLD!
1953 210 4 Door, 235 with Powerglide. All original except for the 1954 hood bird.

John 3:16



 
nick3092 
Forum Newbie
Posts: 8

Reg: 06-29-15
01-10-17 09:02 PM - Post#2670533    
    In response to Cruzin Okie

If the wire leads are intact, one will have a Bakelite fuse holder with a threaded end that is supposed to screw into the accessory junction block. The other lead will have a flag terminal that connects to the junction block to turn the pilot light on at night when you have the parking light or head lights on.

And not to sound like a broken record, but don't power it up without having the radio refurbished. Replacement parts are made out of unobtabium.



 
Dean50 
"10th Year" Gold Supporting Member
Posts: 1075
Dean50
Loc: Detroit area
Reg: 01-02-07
01-11-17 07:31 AM - Post#2670556    
    In response to Cruzin Okie

Hi Johnnie,
If you could take a couple of pictures of your connections that would be great. Like I said, I'm just curious to see the hookup, I don't plan on installing the radio as a complete unit. Might put the tuner portion in the dash at some point just because I think they look pretty cool, and use a Blue Tooth player and speaker.
Right now the only music I have is by Flowmaster, and that is pretty sweet.

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Dean50



 
RAM_51 
Silver Supporting Member
Posts: 4234
RAM_51
Loc: Yakima, WA. USA
Reg: 12-28-02
01-11-17 02:05 PM - Post#2670596    
    In response to Dean50

Dean, are you running an accessory fuse block in your car?

1951 Fleetline
1951 Fleetline DeLuxe 2 DOOR SEDAN
1951 Styleline Special BUSINESS COUPE (Shadow Gray)
1953 6500 Dump Bed (Oxidized Red, Formally Juniper Green)
1950 Styleline DeLuxe 4 DOOR SEDAN (Mist Green)


 
Cruzin Okie 
Contributor
Posts: 628
Cruzin Okie
Loc: Jay, Oklahoma
Reg: 10-26-11
01-11-17 02:54 PM - Post#2670600    
    In response to Dean50

Not a problem, will do and send them to ya.

Johnnie

1950 styleline deluxe sports coupe, 350 cid, TH 400, nova rear end. Gen IV Vintage air. SOLD!
1953 210 4 Door, 235 with Powerglide. All original except for the 1954 hood bird.

John 3:16



 
RAM_51 
Silver Supporting Member
Posts: 4234
RAM_51
Loc: Yakima, WA. USA
Reg: 12-28-02
01-11-17 07:08 PM - Post#2670651    
    In response to Dean50

You can compare these to what Cruzin Okie sends you. Both are from the CHEVROLET RADIO Service and Shop Manual 1950 RADIOS Passenger Car and Truck






1951 Fleetline
1951 Fleetline DeLuxe 2 DOOR SEDAN
1951 Styleline Special BUSINESS COUPE (Shadow Gray)
1953 6500 Dump Bed (Oxidized Red, Formally Juniper Green)
1950 Styleline DeLuxe 4 DOOR SEDAN (Mist Green)


 
Dean50 
"10th Year" Gold Supporting Member
Posts: 1075
Dean50
Loc: Detroit area
Reg: 01-02-07
01-12-17 05:31 AM - Post#2670693    
    In response to RAM_51

Thanks Johnnie.
Thanks Ram51 - That "A" lead end was cut off the wire of the radio when I got it so I wouldn't know which wire it was on. It's been a while since I was under the dash but I think I just have the standard junction block. Thanks for the pictures.

Dean50



 

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