UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Station X · 20th Jun 2017, 10:08 pm

Auto-transformer looks OK.

Output transformer primary looks OK. They generally fail short-circuit rather than high resistance. If the secondary is open-circuit the set won't work.

However an open circuit output transformer doesn't explain why the test lamp glows brightly. Does it still glow brightly with the valves removed?

20th Jun 2017, 10:08 pm	#144
Station X Moderator Join Date: Jan 2003 Location: Ipswich, Suffolk, IP4, UK. Posts: 21,289	Re: Bush A.C.91 Auto-transformer looks OK. Output transformer primary looks OK. They generally fail short-circuit rather than high resistance. If the secondary is open-circuit the set won't work. However an open circuit output transformer doesn't explain why the test lamp glows brightly. Does it still glow brightly with the valves removed? __________________ Graham. Forum Moderator Reach for your meter before you reach for your soldering iron.