- Jun 22, 2012
I've built a number of LA2As with the the Hammond 296jx and have used two 1W, 100r resistors to ground as a "false center tap" on the heaters. None of the units have had any issues after years of operation but the most recent one just failed after 3 months, with the two 100r resistors having burnt out. Any ideas as to what may cause this? I should note that these two happened to be old AB carbon comps, because that's all I had on hand.