Palomar Engineers stocks iron powder and ferrite cores for amateur radio and for radio frequency interference (RFI) suppression. Also current balun kits in ratios 1:1, 4:1, and 9:1.
ORDERS SHIPPED SAME OR NEXT DAY
RFI Kit. Designed to cure most household problems. There are ferrite beads for telephones, stereo, TV, computers, etc. With instructions.
Ferrite Cores. These toroid (donut shaped) cores come in sizes 1/4” to 2.4” diameter and in 5 “mixes” for different frequencies. Use for baluns and wideband transformers. Also for RFI suppression.
Ferrite Beads. Small cores to put over wires and small cables. Larger beads fit over RG-58 and RG-8 to make current baluns.
Iron Powder Cores. Used to make compact inductors. More stable than ferrite. Sizes 1/8” to 4” O.D. in 10 “mixes” for use from DC to 250 MHz.
Toroid Cross Reference. To find a Palomar part number substitute for another manufacturer’s part number use this handy cross reference.
Kurt Sterba has a new Aerials book, “Kurt Speaks Out” with 50 of his Worldradio kolumns from1990 to 2006.
Balun Kits. Make your own 1:1 current baluns. Use from 1.8-1000 MHz.
4:1 Balun Kits. 4:1 baluns to connect your tuner to ladder line.
9:1 Balun Kit. 9:1 can be used as balun or unun.
Palomar. What’s in the name? Find out here. Interesting trivia.