Where are the Ambika kit-parts sourced from? Mouser?
I’d hate to buy a load of resistors that look entirely different from the ones already soldered. That would be most confusing 
Passive are from Farnell, almost everything else except cap switches is from Mouser. Pots and LCD modules are custom.
Nice one, thanks!
SMR4; C14, C22; Ceramic. 2.5mm pitch / 220n (unavailable@Mouser, Farnell 3322592 must be shipped from US)
Would this be a decent replacement candidate? (or would 100n replacements be preferable?)
OK with replacement.
Cheers!