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In Reply to: Pinging noise coming from my DHT's..... posted by drummerwill on December 18, 2016 at 18:27:49:
That is when they stop heat expanding and stabilize. Make sure you are not running them too hard (Filament voltage, plate voltage/current) Try lowering the filament voltage.
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Follow Ups
- "They only stop pinging when they run for about 20 mins" - Chip647 19:31:33 12/18/16 (1)
- RE: "They only stop pinging when they run for about 20 mins" - drummerwill 20:28:35 12/18/16 (0)