Got up 3:30 for a mission to Magdeburg, Germany.  Everything went alright till we got ¾ of the way across the channel.  Amplifier burnt out and Lt. Eptings oxygen regulator was broken, had to abort.  Turned back just as we hit the Dutch coast.  Epting caught hell for something that couldn’t be helped.  Mission was rough.  Plenty of planes shot up.