12AL11

      The 12AL11 is designed as a sharp cutoff, dual control pentode and a power pentode in the 12 pin compactron construction. The dual control pentode is intended for use as an FM detector and the power pentode as an audio frequency output amplifier in TV receivers.
      Some absolute maximum ratings of 12AL11 have been concluded into several points as follow. The first one is about its plate voltage which would be 275V for section 1 and 330V for section 2. The next one is about its grid 2 voltage which would be 275V for section 1. The next one is about its grid 2 supply voltage which would be 330V for section 2. The next one is about its grid 3 (suppessor) voltage which would be 28V for section 2. The next one is about its positive DC grid 1 voltage which would be 0V for section 2. The next one is about its plate dissipation which would be 10W for section 1 and 1.7W for section 2. The next one is about its grid 2 dissipation which would be 2.0W for section 1 and 1.1W for section 2. The next one is about its grid circuit resistance with fixed bias which would be 0.25M. The next one is about its grid 1 circuit resistance with cathode bias which would be 0.5M.
      Also there are some characteristics and typical operation for section 1 about 12AL11. The first one is about its plate voltage which would be 250V. The next one is about its grid 2 voltage which would be 250V. The next one is about its grid 1 voltage which would be -8.0V. The next one is about its peak AF grid voltage which would be 8V. The next one is about its zero signal plate current which would be 35mA. The next one is about its maximum signal plate current which would be 39mA. The next one is about its zero signal grid 2 current which would be 2.5mA. The next one is about its maximum signal grid 2 current which would be 7mA. The next one is about its maximum signal power output which would be 4.2W. The next one is about its transconductance which would be 6500m. The next one is about its plate resistance which would be 100000. The next one is about its load resistance which would be 5000. The next one is about its total harmonic distortion which would be 10%. And so on. For more information please contact us.