- 1. Re: [Amps] Failure of a pair of FU728F (score: 1)
- Author: Rick Robinson <w8zt@suddenlink.net>
- Date: Sun, 15 Sep 2019 14:55:58 -0400
- How about a key up spike in TX power ? A friend asked to me why the pair of almost new FU728F tubes on its commercial PA goes south. It seems that, when tubes are warm, there is a short between Grid1
- /archives//html/Amps/2019-09/msg00024.html (9,323 bytes)
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