"And, of course, the simplest solution is just turn off the furnace when I have my radio equipment on the air! ; - )" Aren't you sorry you disconnected the crystal and VFO heaters ? Miles B. Anderson, K2CBY 16 Round Pond Lane Sag Harbor, NY 11963 Tel.: (631) 725-4400 Fax.: (631) 725-2223 e-mail: k2cby at optonline.net