[MarkR7]

If memory serves right  .... it was higher than 100K.  I'm pretty sure it was around 250K.

[woodnut]

Hello,

Thanks again for the replies. That chart of subjective opinions on caps is very interesting.

I went for the Jupiters for 0.22 and have decided to leave the Mundorf in there for now mainly due to costs. Perhaps I will change these next year if the 0.22 work out well.

I have ordered a 100k stepped shunt attenuator plus a new switch. The standard pot is an alps 250K. I had a look under the hood and found two small caps (see image) on the input of the pot. These are not shown on the schematic in my first post. I can only assume that these are DC blocking caps and should be considered for removal when I put the new pot in. Further to this the volume knob appears to not have a grub screw holding it in place as I expected. There is a threaded hole where the grob screw would go but no screw. At present it looks like it might be glued on unless I am missing something which could be a bit of a pain to remove.

I also had a look into changing the output tube cathode bypass caps 100uf 160v, I would like to take out the electrolytics and put a polyprop in there but space is real tight.

[woodnut]

I am part way through the work on the Almarro A318B and have noticed that the IEC inlet is wired so that the internal fuse is on the neutral line and not the live line as you would expect. I checked a few images on the web of the A318Bs internals and although it is hard to see they appear to be the saem.

What would be the reason for this?