I forgot to ask,Is the boost voltage completely gone
or is there something there?Normally it should be
around 500 to 600 volts.The vert. sweep section
draws very little current from the boost supply.
Only the vert. osc. uses it.It should also go to
the focus grid on the crt.I think that set is too
old to have it going to the sound detector.The
yoke should have a mica damping cap across
at least one of the horiz. windings.The cap
will probably look like a domino.When this cap
shorts out it will cause the symptoms that you
are seeing.Sometimes you will have enough hv
to see an image on the screen that looks like
a Dorito chip(keystoning).If you really want
to get mental,you can disconnect one side
of the 1B3 heater and carefully hook up a
D battery to the 1B3 heater.Make sure you
float that battery real good above ground!
This is not for the faint hearted.This should get
you more hv to the crt so maybe you can see
some form of raster.
Regards,
Swanson