WAD Pre II circuit query

[buddam]

Hi all

with help from people here I've acquired most of the parts to change my PAS to Pre II cath foll. But, both Neal's CF instructions and the Pre II instructions have thrown me. According to both signal in passes through a resistor junction (?) with one leg going to a 1K res and the other through IM to grd. But the pcb I have shows the junction coming after the 1K res, where the signal 'splits' (?) to valve (pt 2 or 7) and grd. Does this matter?

I have a few more Qs on the CF mod:

Neal's original WAD BB notes say “Solder to the input PCB pins one end of a .047uF (47nF) quality polypropylene capacitor”. 2 questions: i) the other end is connected to the i/p end of the 1K resistor?; ii) what are the recommendations for a quality polyprop?

Neal then suggests a “1uF o/p capacitor....quality film&foil polypropylene”. Again, is there a good recommendation? And what is the voltage rating?

Finally, again from Neal, “if the impedance of the next stage is lower than this then increase this [100K] resister to 1M ohm”. How do I measure the impedance of the next stage (a KEL 84)?

Thanks

Adrian