Wow that quite the telescope! This is basically what i wanted to build just smaller and and with a Reflector scope instead of a Refactor scope, thank you very much for this informative comment :D

thats what i was thinking :/

Tubeless telescopes exist tho, i saw some big diy newtonians that did not have any

entrance pupil isn’t well defined

oh right, i didnt thought about that, maybe i could add some sort of shroud to the light inlet

I already ordered a first surface mirror to test, i will report my findings :D

communication satellite, not for espionage

if i see a person struggling with english and still trying to make educational content about niche topics no one else covers, i have the upmost respect for them

I have seen Bias Tee injectors for up to 50v@1.5A, thats enough for a decent output booster. But yes in reality 99% of those where used for preamps in analog TV/Radio Rx

Shellgame time

IR homing sensors before the digital age where a piece of analog signalpath art. Its mostly rotating a singular ir sensor in 45degree and then mapping the inputs rotation compensated to the control surfaces. Simple at core but cant tell the difference between a jet exhaust, the sun, or a flare.

Modern version are boring is a High resolution ir cam and some blackmagic AI picking targets apart from flares.

source for the information in the title: i made it up, or did i?