RCA Victor7T174K TV

[Penthode]

Originally Posted by compucat

Does this set really have full 4 MHz video? I thought only the 630 chassis had that. I too think this is a beautiful set. I find myself staring at it even though it does not yet work. It seems to be well built as well. The chassis is in good shape. I don't recall seeing any rust anywhere. I am going to take my time with this one and make sure it comes out right. I think I am going to love this set once I get it going. According to the Sams this set also has DC restoration.

Yes indeed, all of the RCAs apart from I believe the 621TS and 721TS had 4MHz video at least until until 1953.

Actually the set does not have DC Restoration. (DC restoration implies the DC component has been restored with a diode clamp). Your chassis is better: it instead has DC video amplifier coupling. This is better because capacitor coupling affects the high and low frequency and phase response. DC coupling eliminates the problem hence the video response will be better and no clamp is required.

This is a very well designed set.

Cheers Terry