| To: | "Tom Rauch" <w8ji@contesting.com>,"Rick Stealey" <rstealey@hotmail.com>, <amps@contesting.com> |
|---|---|
| Subject: | Re: [Amps] 8877 Grid Trip timing |
| From: | "Jim Tonne" <tonne@comcast.net> |
| Date: | Tue, 2 Oct 2007 11:33:23 -0400 |
| List-post: | <mailto:amps@contesting.com> |
Tom wrote (in part): > My homebrew amps trip in less than 2mS of excessive grid > current. They also fault if the reflected power is more than > 20% of forward power. Excellent! And in the high power shortwave transmitter world those transmitters use crowbars and trip even faster than that. Those big tubes are pricey and even a millisecond grid fault can melt it and cost a fortune. - JimT WB6BLD _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps |
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