My Ranger problem has been solved. It was indeed a bad clamper tube (6AQ5) even though it tested OK. Thanks for all the help! 73, Carl Yaffey K8NU Banjo, guitar, bass, mandolin, dobro lessons. Pro Tools recording studio. carl_yaffeyNO_SPAM at yahoo.com. 614 268 6353, Columbus OH http://www.carl-yaffey.com http://www.grassaholband.com