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1. [Amps] VTX-X118 Tetrode mytery tube? (score: 1): Author: KL7RA <richkl7ra@gmail.com>; Date: Mon, 4 Apr 2011 04:38:07 -0400; Originally the new AP8410 used the Eimac 4CX1000A tubes but they made a switch to the VTX-X118. Seem to be a mystery tube, can't find the spec sheet and never heard of them. Anyone know anything abou; /archives//html/Amps/2011-04/msg00084.html (7,431 bytes)
2. Re: [Amps] VTX-X118 Tetrode mytery tube? (score: 1): Author: Damon Stewart <wsmc551@gmail.com>; Date: Mon, 04 Apr 2011 09:08:50 -0700; For what its worth. The most grid current I have ever seen out of my 8410, even when testing its limits, has been less then 1mA. In the serial data string the grid current is read in tenths of a mA.; /archives//html/Amps/2011-04/msg00105.html (8,558 bytes)
3. Re: [Amps] VTX-X118 Tetrode mytery tube? (score: 1): Author: "Sam Carpenter" <sam@owenscommunication.com>; Date: Mon, 4 Apr 2011 13:04:48 -0400; It is a WAY cheaper foreign tube. I asked about getting one tubed in EIMAC. She said the difference was somewhere in the range of simply purchasing the EIMAC tubes. On that amp, the screen voltage is; /archives//html/Amps/2011-04/msg00110.html (10,197 bytes)
4. Re: [Amps] VTX-X118 Tetrode mytery tube? (score: 1): Author: "Shane Youhouse" <kd6vxi@gmail.com>; Date: Mon, 04 Apr 2011 12:37:23 -0700; Rebranded 4CX1500. --Shane KD6VXI -- It's a sad state of affairs when your tubes don't have handles but your dummy load does. _______________________________________________ Amps mailing list Amps@co; /archives//html/Amps/2011-04/msg00124.html (9,898 bytes)
5. Re: [Amps] VTX-X118 Tetrode mytery tube? (score: 1): Author: damon stewart <wsmc551@gmail.com>; Date: Mon, 4 Apr 2011 12:39:01 -0700; Hi Sam, By the way, my original call was KB7FUT. Never could come up with any good phonetics that were appropriate for the radio :). As far as what the 8410 can do with a little tuning, I have a good; /archives//html/Amps/2011-04/msg00125.html (14,562 bytes)
6. Re: [Amps] VTX-X118 Tetrode mytery tube? (score: 1): Author: damon stewart <wsmc551@gmail.com>; Date: Mon, 4 Apr 2011 12:50:40 -0700; Sorry, I forgot the decimal point in the spec for the green "min" grid LED. It is set to come on at 0.2mA not 2.0mA. -- Damon Stewart, KJ7E _______________________________________________ Amps mailin; /archives//html/Amps/2011-04/msg00128.html (15,986 bytes)

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