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Capacitor for dash gages ( Omitted ? )

dcmason69

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Had my cluster rebuilt by Auto Instruments it came back with out the capacitor that runs to the hot side of
voltage limiter. When I asked them why it was omitted they say that it is not needed with a electronic
voltage limiter, its only function is to eliminate radio noise when used with a standard limiter !
Hoping someone can verify this before i install in car.
working on a 69 Coronet rally dash
Thank You dcmason69
 
For what its worth most cars that came from the factory without a radio did not have them. Back in the day when we installed a factory radio there was a sub-package that had all the capacitors/noise suppressors for the coil alternator and voltage limiter.
 
Correct, no capacitor needed if you are converted to a solid state gauge regulator The capacitor(s) help suppress the arcing that comes from the electrical contacts ( points) opening under a load and helps clean up the cars 12 volt wiring. The mechanical gauge regulator, mechanical voltage regulator and points / coil of the distributor-ignition system all had capacitors for this purpose. Without them you would experience interference on the installed AM radio.
 
Correct, no capacitor needed if you are converted to a solid state gauge regulator The capacitor(s) help suppress the arcing that comes from the electrical contacts ( points) opening under a load and helps clean up the cars 12 volt wiring. The mechanical gauge regulator, mechanical voltage regulator and points / coil of the distributor-ignition system all had capacitors for this purpose. Without them you would experience interference on the installed AM radio.
Thank You for your replies:
All the info is appreciated, learned something new today and interesting
Thank all who responded.
My plan is to use a Holly sniper with Hyper spark along with a single wire
90 amp alternator. Installing vintage A/C, Also had my factory radio redone by Gary Tayman for AM/FM
so does anyone see issues with radio interference by doing any of these upgrades?
I believe all of the relays that I will be useing will have diodes in them including the ones i will be using for the Headlamp system.
Any comments or concerns welcome.
dcmason69
 
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