Hi all, I am going to attempt to update my Sherwood amplifiers,starting with the PS can caps and the bias supply can cap and selenium diodes. I was going to try and load pics of the schematics with circles and arrows of spots I questions on but got a new printer/scanner and haven't figured out how to use it yet. So question 1 the S360 has a single selenium diode 1ma -20v on the bias supply (I think), what should I use to replace that? Question 2 the S4400 has two selenium diodes, on one leg 160ma -23v bias supply, the other leg -23v goes to heater supplies of V1 and V2. What should I replace these with? Question 3 one value in the can is 5uf 350v the closest I can find is 4.7 350v or 6.8 450v it goes to screen grid on pentode section of 7199. Thank you for any advice you can give. Oh I will have to restuff the existing cans there is no room under chassis.