06-22-2014, 07:48 PM
Crackling nose right upon powerup is no good. Pull All tubes out, including the rectifier and see if it persists. Locate, fix.
Could be caps, could be..anything...transformer.
Field coil should get warm. Not unbearably hot. But quite warm, it dissipates rom a few to 10-plus Watts in various radios.
Could be caps, could be..anything...transformer.
Field coil should get warm. Not unbearably hot. But quite warm, it dissipates rom a few to 10-plus Watts in various radios.