Mutual characteristics for variable-μ and short grid base pentodes. It is often desirable to be able to control the amplification of a valve, either manually or automatically (as in the case of AGC …

Feb 8, 2009 · I included measurements for AGC behaviour, detector performance, and stage gain for the original radio and several variants with improved detector gain and AGC compression. …

The 12K7GT variable-mu screened pentode was designed in the 1940's for intermediate frequency amplifiers in superhet receivers where the stage gain was controlled by the …

Inherently the technology leads to more linear sharp cut off pentode characteristic. This means that AGC/AVC must be implemented by g2 or g3. Limited almost linear gain control, especially …

The 30C17 is a triode variable-mu pentode designed for television frequency changer use. When introduced it was the first variable μ TV frequency changer to be available in the UK. The …

Jul 8, 2018 · Can anyone tell me if it is possible to use a rod pentode in a Transitron /miller timebase as used in scopes tv,s etc.

Jan 16, 2012 · It is the purpose of the AGC control to keep the non-inverting voltage gain from G3 to G2 at 3x to satisfy the 1/3 loss through the Wien circuit. This means that the gm of the tube …

The AC2/PenDD is a double signal diode and output pentode. The high mutual conductance of the pentode was designed to allow the single valve to operate as detector, AGC rectifier and …

Pentode valves are most often used in IF amplifier stages. The cathode decoupling capacitor may have a resistor inserted in series with it in order to reduce the gain. This would be needed in …

Graphic symbol representing a pentode of the indirectly heated cathode class Electrodes, listed from top to bottom: anode, suppressor grid, screen grid, control grid, cathode. A pentode is an …