resistor values-can I replace one with one of a different value?

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resistor values-can I replace one with one of a different value?

There is one on the neckboard of my k4600 that I want to replace.

value of 330k 1/2 watt

fry's didn't have that.

so I bought 240k 1/2 watt and 470 k 1/2 watt.

Can I use one of these as a substitute without messing something up?
 
In 12 volt auto connections you have a 10% plus or minus.

I would try to get the 330. You can also add resistors to each other to change their value.
 
the trick is my impatience.
I can order one from someone (not sure who) and wait a week, but I want to put it in tonite!

:)
 
There is one on the neckboard of my k4600 that I want to replace.

value of 330k 1/2 watt

fry's didn't have that.

so I bought 240k 1/2 watt and 470 k 1/2 watt.

Can I use one of these as a substitute without messing something up?

330K = 330,000 ohms
240K = 240,000 ohms
470K = 470,000 ohms

That's a fair bit of difference between the three.

Edward
 
330K = 330,000 ohms
240K = 240,000 ohms
470K = 470,000 ohms

That's a fair bit of difference between the three.

Edward

thanks for breaking that down.

guess I need the exact one huh? shit

anyone know where I can get one?
 
I didn't see a 330K part on their website.

The usual suspects have it though.
 
Here is what I was talking about.

1 divided into 33,000 ohms = .0000212
1 divided into 47,000 ohms = .0000303

This totals .0000515

1 divided into .0000515 = 19,417 ohms

When piggy back resistors together, you must understand what equivalent value you're ending up with.

You are installing those resistors in parralel. The equivalent value of your resistance for your new circuit is:

1/R=1/47K + 1/33K, where "R" is the equivalent "R" value.

When playing around with values, use this formula to determine how much lower/higher you should go with your piggy back resistor.

An easy way is to twist 2 together and meter it. but remember the 10% If you can't wait try to get as close to 330k as possible.

My bad it is the 330 and not the 330k they stock.
 
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You can connect a 100k in series with the 240k and that will get you 340 k which is close enough for this circuit.

Radio Shack does stock those two values in half watt size.
 
You can connect a 100k in series with the 240k and that will get you 340 k which is close enough for this circuit.

Radio Shack does stock those two values in half watt size.

thanks bud

I tossed in a 470k and it didn't change anything.

I know it doesn't seem like a big deal, but as long as this screen does this, I consider this game to be in project mode, and I just finished completely restoring the cab (new art, etc) and rebuilding the k4600. I want this out of project mode. :)
 
My mistake. After checking my old Radio Shack catalog, they have a 220k resistor not 240k.

This will still work ok though as with 100k and 220k = 320k.

# 271-1132 Resistor, 220k @ half watt

# 271-1131 Resistor, 100k @ half watt
 
There's actually two resistors connected to the screen pot: R419 and R418.

All it takes is for one or the other or both to be bad.
 
I already have 240k resistors
so if I get a couple of 100k I can change both 418 and 419? are these both 330?

how do you put them together? solder one to the other and then put hte legs through and solder to the board?
 
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