[Boatanchors] Capacitor Needed...

[Gary Peterson]

I’m quite certain that I probably have what’s needed here.  I have been fortunate to have parted out many AM and FM broadcast transmitters.  When one works in broadcast engineering for over 50 years, such opportunities present themselves, from time to time.  I have a couple of large coffee cans filled with doorknob capacitors of all manner of values and voltage ratings.  I am also able to hi-pot these components, up to 5 kilovolts DC, and measure any leakage.  Later today, I will look for one that is 500 pF at 2 kilovolts, or more.  It can’t cost very much to ship.

I also have a large collection of fixed, vacuum capacitors.  If anyone is looking for such, contact me off-list.   

Gary
KzeroCX
Rapid City, SD 


“that needs to be a doorknob or other cap with significant RF current capability because it must handle significant RF current in this circuit.  It is the loading padder for 80 meters so the SB-220 should operate normally on 40-10 without it.  You may also be able to find large ceramic discs that will handle the RF current but I would be more comfortable with a doorknob type.”