Hi Bill and welcome. I would need to research those capacitors. 700 volt caps are rare to find these days. Have you tried Hayseed hamfest? They may have them.
When I need caps like that I put them in series and then put a piece of heat shrink around them making it look like one capacitor. I have not seen a knight transmitter in so long I am not sure of how the inside looks.
Someone got creative and used old forklift valve and cylinder to give hydraulics to the lift. They used a ford power steer pump to make it work. Really works good.
Robb, Sorry, not much time to internet here. Been so busy with work. I do not know of any links about the cpu board. There is not a lot of information out there on these. If I find something I will post it up for you.
Hi and welcome to the forum. There is not a lot of activity here but I do have regular check ins. Hope that it will get better soon. Glad you like the videos. Thanks. Radio is a fun hobby. Thanks for sharing your story and please stick around.