Operation

From Collins 30S-1 HF Amplifier
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Dayton Blower Sound Level

Here are a couple of sound-measurements, for context. I used the NIOSH iOS app:

  • 30S-1 with Dayton 3,000rpm motor change: 59 dB(A) 1-meter directly in front
  • Listening to HF Radio, SSB voice: 65 dB(A) for my preferred Sound Level

Media:Dayton_blower_startup.mp4