[lcaillo]

They use semiconductor fuses sometimes. The Pico fuse from Acme will be fine.

 

[lcaillo]

They do run pretty warm. Should be hot but not too hot to touch. If so, check the d.c. offset and center it if off.

 

[lcaillo]

Vertical convergence correction is done using waveforms at horizontal rates. Higher frequencies to amplify means more heat. I do not recall if these sets had all of the vertical channels in one chip or not. As I recall, both chips run at similar temps in these sets. One is likely being driven harder. Read the posts in the convergence thread very carefully. There is a discussion there about heat and about how adjustments can affect it.