‰ NOW 15 WPM ‰ TEXT IS FROM JULY 2015 QST PAGE 58 ‰ APPLICATIONS HOWEVER, WATCH FOR SUDDEN SWR CHANGES. MANY COMMERCIAL TRAPS USE TELESCOPING LENGTHS OF ALUMINUM TUBING SEPARATED BY PLASTIC DIELECTRIC TUBING AS THE TRAP CAPACITOR. HIGH VOLTAGE DOORKNOB TYPES THAT ARE RF RATED ARE ALSO AVAILABLE, AND A GOOD CHOICE. YOU COULD TRY LOOKING AT RF PARTS WWW. RFPARTS. COM. ANOTHER POSSIBILITY IS TO MAKE THE TRAP CAPACITORS AND THE INDUCTORS FROM COAX CABLE, AS HAS BEEN DESCRIBED IN A NUMBER OF QST ARTICLES. IN RESPONSE TO MY ANSWER TO JON, WN4V, ABOUT ‰ END OF 15 WPM TEXT ‚