VT-191

      The VT-191 is designed as filamentary air-cooled triode for use as an ultrahigh frequency oscillator and power amplifier. The tube develops a typical power output of 5 watts at a frequency of 500Mc. The frequency limit of oscillation is 750Mc.
      Some important specifications of VT-191 have been concluded into several points as follow. The first one is about its filament voltage which would be 2V. The next one is about its filament current which would be 3.65A. The next one is about its amplification factor which would be 8. The next one is about its grid plate transconductance which would be 2400m. The next one is about its direct interelectrode capacitances plate to grid which would be 1.6F. The next one is about its grid to filament which would be 1.1F. The next one is about its plate to filament which would be 0.65F. The next one is about itsplate modulated OSC & radio frequency power amplifier - class C maximum DC plate voltage which would be 400V. The next one is about its maximum DC plate current which would be 80mA. The next one is about its maximum DC grid current which would be 15mA. The next one is about it maximum plate dissipation which would be 20W. The next one is about its oscillator & ratio - frequency power amplifier - class C - unmodulated maximum DC plate voltage which would be 450V. The next one is about its maximum DC plate current which would be 90mA. The enxt one is about its maximum DC plate input which would be 36W. The next one is about its maximum DC grid current which would be 15mA. The next one is about its maximum plate dissipation which would be 30W.
      Something should be noted that VT-191 must not be subjected to appreciable mechanical shock or vibration. The thoriated tungsten filament of this tube is somewhat more fragile than the thoriated tungsten filaments of other transmitting tubes. These tubes should therefore be handled with more care to prevent filament breakage. In connecting to the terminals of the tube, care must be taken not to strain the glass. The tube may be supported from the terminals providing flexibility is maintained. And so on. For more information please contact us.