Farad Capacitor?

[bad400man]

I know people say that farad caps are no good for running cb amps but i just have one ? would it be worth while to add one if i had a 250 farad cap over the normal 1,2,or 5 farad caps. just a thought that went through my head.

 

[Beetle]

Try it. See if it works.

 

[bad400man]

Thanks. Never thought of that.

 

[Wire Weasel]

If it's being used in a filtering capacity, then the more filtering the better....or more filtering can't hurt. Use it if you got it. It's just that when buying one, a higher capacitance cap. will cost more.

 

[Captain Kilowatt]

I know people say that farad caps are no good for running cb amps but i just have one ? would it be worth while to add one if i had a 250 farad cap over the normal 1,2,or 5 farad caps. just a thought that went through my head.

I'd give anything to see a real honest to goodness 250 Farad capacitor.Man,talk about inrush current. :blink:

 

[74IN]

Useless for powering an amp.

 

[unit_399]

Adding a 1 farad capacitor across the power leads of a linear amp in mobile operation is an absolute necessity as far as I'm concerned. The capacitor performs two functions: first it will act as a noise filter and improve the receive performance of the transceiver. Second (and most importantly), It will act as a current sink and help provide maximum available amperage( and eliminate system voltage drop ) under peak load conditions. Users of super high power car stereo amps use several of these to keep their amps from clipping under peak load. Same thing applies to CB linears. Go for it ... you will see a BIG increase in power output and audio intelligibility.

- 399

 

[74IN]

Car audio and an RF amp are different animals.

You don't speak in short bursts like a bass note, so the power draw has a higher average.

It won't do a thing for adding current.

 

[74IN]

I'd give anything to see a real honest to goodness 250 Farad capacitor

I dunno about the real or honest, but.....

Lanzar OPTICAP2500 - Optidrive 250 Farad 16 Volt Amplifier Style Hybrid Capacitor at audioblowouts.com

 

[mackmobile43]

Your best bet is to have an adequate power supply for the device being powered.

 

[N9RZD]

I'd give anything to see a real honest to goodness 250 Farad capacitor.Man,talk about inrush current. :blink:

"edited due to duplicate content"

 

[W5LZ]

Along with actually seeing a 250 Farad capacitor, I would really like for there to be very large distances between it and me if there's an accidental short! I seriously doubt if there's a screw driver large enough to survive such an event.
- 'Doc

 

[Bionic Chicken]

I'd give anything to see a real honest to goodness 250 Farad capacitor.Man,talk about inrush current. :blink:

Me too! I bet it would dim the lights of a small city charging it up.

 

[mackmobile43]

Along with actually seeing a 250 Farad capacitor, I would really like for there to be very large distances between it and me if there's an accidental short! I seriously doubt if there's a screw driver large enough to survive such an event.
- 'Doc

I'm sure it would remind you of a dc stick welder in action.

 

[unit_399]

Car audio and an RF amp are different animals.

You don't speak in short bursts like a bass note, so the power draw has a higher average.

It won't do a thing for adding current.

In SSB the output of a linear is essentially "bursts of current."

Have you ever followed a car at night that had a big time subwoofer thumpin' away and watched the car's lights dim everytime a bass note was struck? This is because the amperage being drawn exceeds the capacity of the charging system, and the system voltage drops. Adding one (or several) 1 farad caps is the same as adding additional batteries but without the added weight. Also,as a car battery ages, its internal resistance increases due to sulfate build-up on the plates. This IR restricts current flow through the battery . Bypassing the battery with a large value cap cancels out the effects of IR and allows the car's electrical system to operate at peak capacity.

- 399