64 Galaxie regulator condenser
 

I found the regulator has a condenser wired to the regulator "A" terminal. Any idea what it is for? Cannot find it on the wiring diagram.

Re: 64 Galaxie regulator condenser
 

I think it that was part of the noise suppression for the radio.

Re: 64 Galaxie regulator condenser
 

herman is right

Re: 64 Galaxie regulator condenser
 

I have also seen them mounted on the back of the generator with the wire attached to Arm terminal. It's a good bet those old condensers are bad by now. Once upon a time, you used to be able to go to radio shack and get a noise interference capacitor and mount it next to your radio. It was about 1-1/4" diameter and about 2-1/2" long with a one-hole mounting clamp. Those were for use with solid-state radios (transistorized), not sure if they would be effective with the tube type radio's but I don't see why not. Don't know who might sell them now. Circuit city?

Re: 64 Galaxie regulator condenser
 

I think Circuit city is long gone or at least in my area.

Re: 64 Galaxie regulator condenser
 

Fry's Electronics would prolly have a suitable substitute. There's one in Fishers, IN. Or you may be able to order online.

https://www.frys.com/ac/storeinfo/fi...aps-directions

Re: 64 Galaxie regulator condenser
 

It was my understanding that when the voltage regulator cutout closed as the sydtem started charging the radio would make a loud click without the condenser.
I have seen cases where one was needed on the stop light switch too.
I had a customer with a 510 Datson that would make an annoying click sound on the radio every time the brake pedal was pushed.

Re: 64 Galaxie regulator condenser
 

Dave is correct. In fact, there's likely a noise suppressor at both the voltage regulator and the generator of that car (if they still had generators in '64.) My full size '61 Mercury has one at both locations.

I've also heard that they usually go bad with age, but I just got my Merc's original tube radio refurbished, and I was pleased to find out that both suppressors (which I believe are original) still work. No interference, anyway. Before I reinstalled the radio I looked for replacements though. I wasn't able to find exact replacements, but the guy who repaired my old radio seemed to think that some places still had new non-original units that would work. He referred me to NAPA. Some units had the same part # but different prefix, but that may have only been indicating a different connector. Or maybe not. Good luck.