Quote:
Originally Posted by Penthode
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
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You are right. This set does not have DC restoration. I was getting confused with another RCA schematic. The video detector diode is connected to the video output cathode through a coil and a resistor.