Pleiades DK91 9V, 1.2V battery electron tube (electronic valve) microphone booster (pre preamplifier) updates

At your risk. Considering containing everything in an Hammond orange, size of double guitar pedal, aluminium box. Ie the Bulgin 9V and AA 1.2V battery holders, the 2 Neutrik chassis XLRs, 2 octal bases for the input and output transformer, 1 miniature base for the DK91 pentagrid electron tube used in triode mode. (anode is g2 internaly connected to g4). These grids are close to the cathode filament making smooth operation of the electron tube with just Vb=9V. In fact miraculusly anode current is about 30 micramperes when grid is at space potrential, ie unconnected DC wise, only ac signal ie music deriving it through a coupling capacitor. If said control grid is connected to a 8.2 Megohm resistor and other side of resistor is connected to negative terminal of 1.2V filament cathode battery, Ia=90 microamperes, and if at positive terminal, Ia=120 microamperes. So grid 2, grid 4, (and possibly other grids too) is the anode to collect the dancing to the music signal loving electrons. Considering at some later stage making a gift to producer Nerada who was giving all those loving gifts, like talking teddybears to Whitney.