Not trusting what we see as mic used on studio on a videoclip seems a good idea

At your risk. See for example Where do Broken Hearts go - Whitney Houston video showing a condencer microphone, and compare the Whitney: Inside the Album with Producer Narada Michael Walden video, Narada holding in his hands what looks like A Shure SM7 dynamic (moving coil microphone): https://www.youtube.com/watch?v=uUHKIK4f5AY

A Brief History of Early Motion Sound Recording and Reproducing Practices - John K. Hilliard - Journal of the Audio Engineering Society, Volume 3, Number 4, 1985 April

Very nice paper discribing also the bass, mid bass, mid? heaviness effects created in listener's brain when a microphones is just connected to a preamplifioer with no EQ correction for the Fletcher Munson equal loudness curves, voice effort curves, recording space boominess due to standing waves etc.

Variable Mid frequency correction box or Pleiades vocal microph9one correction box

At your risk. A variable passive filter to correct for bass, mid heaviness due to proximity effect, Fletcher Munson equal loudness curvs, voice effort curves, low frequency small room standing waves etc. It is the usual Pleiades filter but the inductor is a multitap inductor, currently 12 position. Then in series is a 1K military quality potentiometer. Then in series there is provision for 3 swichable capacitors, say 10nF, 100nF, 1uF. capacitors are for creating a Shure SM7 type notch or band reject filter for removing a high frequency peak, or even for attenuating the fundamental of a singing voice. So all L,R,C are in series and the total connected across the microphone output. The toroidal core used is the Magnetec nanocrystaline M-059-03F6. Starting with 2 turns then multiplying by 1.42 to find yhe next number of turns for next tap. 1.42 times 1.42 makes roughly 2 so frequency cutoff is advancing in octaves. So 2 turns 0.6mH, 3 turns 1mH, 6 turns 2.4mH, 8 turns 4.3mH, 11 turns 8mH, 16 turns 17mH, 23 turns 35mH, 33 turns 73mH, 46 turns 141mH, 66 turns 290mH, 94v turns 600mH. Everything with be attempted to be fitted inside an orange color Hammond guitar pedal size aluminum box. Ie the 2 Neutrik male and female XLRs, the inductor under a 12 position 1 pole rotary switch, the 1K potemtiometer, the 4 position 1 pole switch and the 3 or 4 capacitors. Gray-silver colored knobs. Maybe a provision for disconecting the filter by a switch or an unconnected inductor rotary switch terminal for EQ in or out. Further reading for the bass, mid heaviness effects in the listener's brain mentioned in sentence 2: A Brief History of Early Motion Sound Recording and Reproducing Practices - John K. Hilliard - Journal of the Audio Engineering Society, Volume 3, Number 4, 1985 April

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.

Nerada interview, How to get 57 number ones? (discusion on Clive Davis great input towards the end)

https://www.youtube.com/watch?v=Pg1rVxlLXxc

Narada Michael Walden on Whitney Houston - documentary - YouTube

Interview of drummer of Kool and the Gang, George Brown

https://daily.redbullmusicacademy.com/2015/09/george-brown-interview