[R-390] Filters

[quartz55]

As I usually do, I was thinking about my project welding the center wire last night in bed.  I'm going to revisit the welding process using my jig and the bolt.  It would be much easier if I can have the wire in position on the end resonator and then give it the jolt instead of trying to bring it up to the resonator while the voltage is on the wire.  It may change the spark energy at the wire because now I'd be getting 2 sparks, one on the wire/resonator and another with the switch or clip contact to the capacitor, which may effect things.  Anyhow, bottom line is I'm going to do some more experiments with a fine wire and the bolt before I try the final solution.