I built a very similar one in 1975 - I recognize some of the boards with the chassis pulled out. It also had the SCR horizontal. I never had a problem with it except that the little electrostatic speaker on the remote would burn out about once a year. Greatest moment was first firing it up, and finding the static convergence so far out that you couldn't tell whaich dot belonged with which. I turned on WGN, and adjusted until there was only one Bozo on the screen. Sometimes we would come home and find the dog (German shepherd) watching TV. At first, I thought it might be his collar jingling in the ultrasonic range, then one day we saw he turned it on by accidentally hitting the large square buttons with his tail.
I sold it to someone from work, and he and his friend managed to bust the CRT neck while carrying it out.
