These are all similar.Talking to Kevin at Tritronics (1-800-638-3328) we have devised a "kit" of parts that will fix 99% of the mentioned boards. Fly: use 95-4134-15REP ($15) Diode: CRX3412 103-417-06 HOT transistor QX3200 121-1167-01 And always change the HV splitter A17196-12REP ($69.95) The fly and splitter are Tri-Tronics generacs but they are very good quality. I cannot tell from the originals. I rebuilt a 9-1978-01 using these parts, installed the HV splitter,and the PTV has been up running good for several days now. Phil Bader -- Philip Bader Jan Phyl TV Inc. (estab. 1976) 3420 Recker Hwy. Winter Haven, Fl. 33880 Fax (863) 299-8821 email: philbad@xxxxxxxxxx ------------------------------------------ To REMOVE your email address, click here: http://www.tech-assist.org/unsubb.html To CHANGE your email address, click here: http://www.techassist.net/forms/change.html ------------------------------------------ ***NEW*** Tips Added Instantly!!!*** Submit Repair Tips here: http://www.tech-assist.org/secure/tip/