Boosting Amiga video port's RGB signal possible ?

[amigaoneproductions]

Try to rise the RGB signals BEFORE the JOKE(?) (if present)

That will be the YOKE that you are talking about ;-)
The Yoke is the back of the tube where the connections are.

If you are not familiar with the innerds of a TV,  stay well clear.  Also a lot of modern TVs have no internal adjustments that are of any use.  There may be RGB gain controls on the board on the back of the tube if you are lucky,  but if you do not know how to recognise them,  don't twiddle.

The board on the back of the tube usually has at least 1000 volts going though it,  (which is nothing compared to the 27 THOUSAND volts going to that rubber sucker that us techies call the anode cap)

Scared yet ?  You should be

 :-o

[amigaoneproductions]

I don't plan to keep the TV on or even plugged into mains when I'll open it.

STOP !

TV's hold a high voltage charge for HOURS after being unplugged.  Working on them just unplugged is not enough,  the tube has to be discharged to make it safe.  I am deliberatly not telling you how to do this as I don't think you should go anywhere near.  I do this stuff for a living and have been doing this sort of stuff for years,  and there is no way I would allow one of my collegues to work on a monitor or TV without the proper training.

It is not DIFFICULT ro work on these things, but I cannot encourage you to go poking around without knowing exactly what you are doing.

What I would suggest is asking if there is anybody nearby you with the required expertise,  where abouts on the planet do you live,  (this being a global forum ;-) )

[amigaoneproductions]

@Jose

I'm aware of the danger and I'm not gonna do anything silly.

Thats good to hear !

@ChaosLord

Another soul saved,  I think we have done our good deed for Xmas :-)

[amigaoneproductions]

No, I still haven't opened my TV, once people here finishes vacation I will do it ( so I still have a couple of days to live.

One of the rules of TV repair:  Never work alone,  that way if you do get fried,  there will be someone to call the emergency services :-)

[amigaoneproductions]

Maybe this would also be a good read :

Ten Commandments of Electrical Safety