To: | N1BUG <rsgb_lf_group@blacksheep.org> |
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Subject: | Re: LF: Class D current spikes |
From: | Chris Wilson <dead.fets@gmail.com> |
Date: | Tue, 26 Feb 2019 11:18:36 +0000 |
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Hello N1BUG, Just to add things were MUCH worst using a X2 multiplier circuit (Jay's). I now use an exciter frequency of X2 direct both from the U3S, and as of late X2 from the TS-590 into a simple squarer and use WSPR in the "Advanced" X2 mode to correct the WSPR tones. No issues at all with either. OPERA is a no no as of this time, it is a FET killer :) Don't know why though. It would be great to get to the bottom of all this! Tuesday, February 26, 2019, 11:05:15 AM, you wrote: > Jay, > I was using an HF transceiver in CW mode through a down converter. > Other FETs were lost at end of envelope while running JT9 with the > transceiver in USB being fed audio from a sound card. The latest was > with audio from a different sound card into the new phasing exciter. > I have never lost a FET while running with the U3S. > 73, > Paul -- Best regards, Chris mailto:dead.fets@gmail.com |
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