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- Wed Apr 03, 2024 1:44 pm
- Forum: Pocket Powerbox Advance
- Topic: "Ringing sound" with Celestron Dew Heater Ring
- Replies: 0
- Views: 406
"Ringing sound" with Celestron Dew Heater Ring
Posted March 23 I have recently purchased a Celestron Dew Heater Ring (9.25") and a Pegasus Powerbox Advance (Gen2). However, when I run the heater ring at anything from about 30% to 90% there is a pronounced "ringing" sound coming from the powerbox. The sound reminded me of that whic...