• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
  • A Winner has been selected for the 2025 Radioddity Cyber Monday giveaway! Click Here to see who won!

Search results

  1. D

    Brown Boveri Q450-1 conditions

    Good morning, I am new to the forum and I'm not sure this is the most appropriate section. I landed here reading a thread on the inspection of 3-500z tubes. I would like some help in evaluating a Brown Boveri Q450-1 transmitting tetrode that I recently bought for a few bucks. Unfortunately...