Canadian Marconi TV 102T17

[maxhifi]

Originally Posted by Penthode

By saying the resistors are far off, how far off are they? The resistor values are generally not too critical except for some circuits. You may find changing all the resistors a wasted effort if it doesn't make any noticeable difference.

Note most are likely +/-20%. Even outside that it often Doesn't matter. It would be better to focus on the capacitors and only attack the resistors if there is a specific problem.

Most are between 20%-100% off. On average 30-50% high, with cathode resistors reading up to 250% of marked value. This specific TV has the most off resistors I've ever encountered in on TV during a restoration, so I decided to change them all, usually I only replace parts which cause a specific malfunction, as you say.