09-09-2009, 12:29 PM
Back to the .0015 cap. Surprisingly, I have had difficulty locating one. (.001 & .0012, but no .0015)
However, the more I look at it, the more I wonder if I even need it. The cap is part of the antenna transformer cicuit. The secondary of that circuit has one side connected to the internal antenna, and the other connected to the cicuit. However, the .0015 cap is on the primary side of that trannie. On the primary side, one side CAN BE connected to an external antenna, while the other side is connected to ground via that .0015 cap.
Which leads me to two conclusions:
1). It should only be needed if I am using an external antenna (which I am not).
2). It is likely just a cap used to shunt high frequencies to ground, or to somehow help develop the frequencies coming into the antenna. In either case, it shouldn't really matter the exact size.
So I figure for now, since I'm not using an external antenna, I'll just leave the original cap in for its looks, as it is not harming anything, nor can it, even if it is shot.
Make sense?
(I did order a .22 cap to replace the one in that coil/cap combo I noted above. I figure I'll just slide out the old cap and put the new one in its place, using the original coil.)
However, the more I look at it, the more I wonder if I even need it. The cap is part of the antenna transformer cicuit. The secondary of that circuit has one side connected to the internal antenna, and the other connected to the cicuit. However, the .0015 cap is on the primary side of that trannie. On the primary side, one side CAN BE connected to an external antenna, while the other side is connected to ground via that .0015 cap.
Which leads me to two conclusions:
1). It should only be needed if I am using an external antenna (which I am not).
2). It is likely just a cap used to shunt high frequencies to ground, or to somehow help develop the frequencies coming into the antenna. In either case, it shouldn't really matter the exact size.
So I figure for now, since I'm not using an external antenna, I'll just leave the original cap in for its looks, as it is not harming anything, nor can it, even if it is shot.
Make sense?
(I did order a .22 cap to replace the one in that coil/cap combo I noted above. I figure I'll just slide out the old cap and put the new one in its place, using the original coil.)
