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Station X · 18th Jan 2012, 1:08 pm

In post #72 the resistance of the output transformer primary was measured as 780 ohms. I have no doubt that if a link was inserted between the two red wires on the tag strip then HT would appear on the anode of the UL41.

However we don't want to power up the set and blow all the heaters because of a possible earth fault in the heater chain.

18th Jan 2012, 1:08 pm	#107
Station X Moderator Join Date: Jan 2003 Location: Ipswich, Suffolk, IP4, UK. Posts: 21,286	Re: Bush AC34, no sound. In post #72 the resistance of the output transformer primary was measured as 780 ohms. I have no doubt that if a link was inserted between the two red wires on the tag strip then HT would appear on the anode of the UL41. However we don't want to power up the set and blow all the heaters because of a possible earth fault in the heater chain. __________________ Graham. Forum Moderator Reach for your meter before you reach for your soldering iron.