[Electronic M]

C1 - C6 are the lytics. Any cap without a voltage spec is likely a ceramic or mica and (unless it is a mica in the deflection stages) should not need to be replaced. The ones that have a voltage ratings are either lytics or paper type and should be changed. Sam's always gives the first 'C' numbers to the lytic caps and you can tell the lytic from the paper because the capacitance value don't have any leading decimal points in the lytic values (Sam's also uses a different symbol for lytic caps than other types on their schematics which is helpful to know at times).

The ones that aren't lytics or papers (they usually have no voltage rating) and have values that don't contain decmal points are micas or ceramic and have their values listed in pico farads as opposed micro farads (like papers and lytics).