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- DISK CAP'S, NUMBER IDENTIFICATION
-
- Have you ever looked on some of these new circuit boards an seen all them small
- disk type Capacitors, GREEN, TAN, BROWN, ETC. Wondering what all them numbers
- on then mean. Of course there isn't documentation or schematic for it anywhere
- to find. Some of them are marked with the correct values like .01 or .047 is
- nice. But what about all them marked with 104, 223, 103, ETC! What are they all
- about. They are all about the same size, just all the numbers are different...
-
- That board only cost about $59.95 an that cap. ( board ID No. c123 ) is either
- shorted, cracked or smoking. Guess you will just have to toss it out and spend
- another $59.95 plus two days running around to find a correct replacement THEN
- SALES TAXES. Below is listed the correct way to read them numbers to identify
- the correct values the way I like to economically, (CHEAP).
-
- It seems that c123 is smoking or getting to hot, we know its bad an that c123
- means that is where it goes in the circuit board not a thing about what it is
-
- EXAMPLE 1
-
- The capacitor has the number 223 on it nothing else.....
-
- 2 2 3
- . . ............. MULTIPILER { Number of zeros to add }
- . .
- . ................ 2nd SIGNIFICANT Figure { of Value }
- .
- ................... 1st SIGNIFICANT Figure { of Value }
-
- 2 2 000. < There must be a total of 6 places. move the
- decimal 6 places to the left, add zeros if needed
-
- .022000 < Then cross out the zeros after the last number.
-
- .022 Is the value of the needed capacitor. ( WOW'S ) Thats it.
-
- This will give you the value of said capacitor in microfarads or .022 uf.
- ( leaving all the zeros on it .022000 is the value in picofarads pf. ) We all
- know that the only voltages in most computers are 5.0 WVDC or 12.0 WVDC that
- means most any capacitor rated at 35 WVDC will work in 99% of most circuits
- with the exception of the main power supply where voltages are much higher on
- the input to the switching network they should be 500 or 1000 Working volts...
-
- If in doubt using a higher Working Volts of 100% higher or more if it will fit
- doesn't hurt. Do get a capacitor of similar construction type.
-
- EXAMPLE 2
-
- Number on Cap. is 104
- 100000. Add decimal to rear of total.
- .100000 Move decimal to left total of 6 places.
-
- .1 <----- Is the correct value. (.1uf)
-
- You can check the voltage with a meter then use a capacitor of at least
- double the working voltage (WVDC). Do use capacitors of (WVAC) in circuits
- with A.C. voltage like the input to the main power supply.
-
- I hope this helps you as much as it helped me.
-
- Complements.
- -<T.W.G.>-
-
- That WILD Goose. July 02, 1989 Member HAL-PC Houston,Texas.
-
-