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1963 AM/FM Delco Radio Volume Control

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Old 02-13-2011, 04:18 PM
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pullin-gs
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Default 1963 AM/FM Delco Radio Volume/Tone Rebuild

Where can I get the volume/tone control variable-resistor stack (which will fit stock *****)? Mine is such a mess that I'd just assume install a fresh one vs try and rebuild my control
UPDATE: Rebuilt original control instead.....see below


Thanks

P

Last edited by pullin-gs; 02-16-2011 at 08:00 AM. Reason: Renamed thread
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Old 02-14-2011, 11:24 AM
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Default 63 radio problem? Wonderbar

What was the problem with your volume control? I posted previously that tapping volume shaft sharply would restore erratic volume control (too loud). Probably a ground issue.(63 swc) Interested in your fix. Regards, Abe G
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Old 02-14-2011, 01:05 PM
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Contact Jerry. If he can't help you? No one can.


http://www.electrodesign.us/index.htm
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Old 02-14-2011, 02:13 PM
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Originally Posted by abe g
What was the problem with your volume control? I posted previously that tapping volume shaft sharply would restore erratic volume control (too loud). Probably a ground issue.(63 swc) Interested in your fix. Regards, Abe G
I've got the POT torn down now....will clean off the wipers and resistor loop with some rubbing alcohol. I have some tuner cleaner, but have found it to be only a temporary fix in the past, so I would just assume replace the unit. Anyway, I'm shopping around for a new one. The best price I have found OTD is $61. Pretty steep price for a 50-year old POT. A lot of 13 (NIB) sold on EBAY just last month for $30.

PS: Just fixed my clock! Points needed work, and the movement lubed (use light clock oil!!! do not use 3in1 or anything else). Adjusted it also! I've got it to within three seconds each hour (was 15 seconds off).
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Old 02-15-2011, 11:08 PM
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Fixed!
These old radios dont sound half bad!
The volume and tone are smooth as silk, and I did not have to use the tuner cleaner. I could not find a reasonably priced new control, so I rebuilt the old.
This is what I did.
1)Put my wallet away...this is a zero-dollar fix.
2)Pulled radio from car.
3)Unscrewed and removed radio metal top cover.
4)Unscrewed plate that mounts controls
5)Unscrewed big flat bolts that screw onto shaft housings and removed the plate.
6)Loosely pulled out the volume/tone/power control (it is one integrated unit).
7)Took picture of several angles of volume/tone control while wired up...this is important if you want to get the wires right when you re-install it.
8)Gently desolder all wires connecting to unit. There are 11 terminals total on the unit.
9)Place control on bench and go to work.
It is a press-fitted assembly. The metal tabs which hold it all together can be pulled back. I slid an exacto knife blade (filed dull) between the metal casing and the tabs to bend the tabs up. Do not pull too far or push forward and back more than needed....the tabs will break off! I did not dissassemble the switch portion, but everything else I took apart.
Keep track of all pieces...draw a picture.
Once apart, clean each piece with rubbing alcohol. The two donut-shaped flat black variable resistor pads (one for volume, one for tone) is what gets nasty. I cleaned them off, then took a pencil and put a light covering of graphite on the black face. This serves two purposes:
1) Lubricates
2) Gives a better contact to face of the resistor plate. It may change the electrical characteristics also, but not enough to be of any trouble.
Now put everthing back together again.
This project from start to finish took me about four hours (including fixing the clock).
you might put some lube on the metal shafts? But do not put it on any of the electronics.
Replace the light also if it needs it.
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Old 02-16-2011, 08:02 AM
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I forgot to mention that the tone resistor ring was broken. These old POTs are all the same size, so I found another old POT and took the ring out of it!
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Old 02-16-2011, 09:50 AM
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Default Wow!

I can appreciate the know how and patience that you put into this repair! As for me, " a sharp rap with light hammer on volume cont4rol shaft' will have to do. Presently working. Good luck, Abe G
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Old 04-18-2012, 07:17 AM
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anyone know where to get a complete new volume control?
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Old 04-19-2012, 11:23 PM
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740izo6:

63-67 Vette radio volume controls are almost completely made of unobtainium...............however, one can still be obtained here:

http://www.elliottsradio.com/cubecar...roductId=12303

HTH
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Old 04-20-2012, 03:13 AM
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Originally Posted by MiguelsC2
Contact Jerry. If he can't help you? No one can.


http://www.electrodesign.us/index.htm
Originally Posted by 740izo6
anyone know where to get a complete new volume control?
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Old 04-20-2012, 06:33 AM
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Originally Posted by MiguelsC2
Contact Jerry. If he can't help you? No one can.


http://www.electrodesign.us/index.htm
He's the only I would go to............and very reasonable too. I would send him the radio and have him fix it.

Mike
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Old 04-20-2012, 02:35 PM
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Originally Posted by 740izo6
anyone know where to get a complete new volume control?
Here's what my chevrolet Radio Service and Shop Manuals say for the volume/tone/on-off control part #'s:

For '63 Wonderbar 7282024
For '63 AM/FM -- sorry, don't have that manual (was a later release)
For '64 7287620
For '65 (5 different numbers) 7290641, 7290744, 7291126, 7290633; and 7290296 (I suppose that mean's they'd all work)
For '66 and '67 7290296.

First pic below of 7290296; 2nd is of a '64, still mounted in radio.



r



x
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Old 09-07-2021, 01:32 PM
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Looking for a volume control: part # 7282024. The links listed here don't seem to be active.

Thanks!
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Old 09-08-2021, 04:44 PM
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Originally Posted by ejeffrjr
Looking for a volume control: part # 7282024. The links listed here don't seem to be active.

Thanks!

This post is from 9 years ago.

Try asking in Parts Wanted.
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