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callaway · July 5th, 2009, 09:21 AM

Yeah, it might not be the PT. I was thinking the high voltage winding could be open and the heater/pilot light winding could still be fine.

Is it possible that the 6JE8 could have caused the 100k plate resistors to blow? Well, should only be about 0.25 W dissipation if they were shorted to ground. You'll just have to dig around and try to figure it out!

Lesson for anyone in swapping tubes though---don't make the swap unless you're absolutely sure the pinout and ratings are similar. Of course I can't say for sure that the 6JE8 was the cause of the problem, but I'd be highly suspicious of it.

July 5th, 2009, 09:21 AM	#7 (permalink)
callaway Tele-Meister Join Date: Jun 2009 Location: Blacksburg, VA Posts: 162	Yeah, it might not be the PT. I was thinking the high voltage winding could be open and the heater/pilot light winding could still be fine. Is it possible that the 6JE8 could have caused the 100k plate resistors to blow? Well, should only be about 0.25 W dissipation if they were shorted to ground. You'll just have to dig around and try to figure it out! Lesson for anyone in swapping tubes though---don't make the swap unless you're absolutely sure the pinout and ratings are similar. Of course I can't say for sure that the 6JE8 was the cause of the problem, but I'd be highly suspicious of it.