You have a mix of carbon comp and metal film (?). What looks like old mustard caps and sozo. Would you mind filling me in on where you think carbon comp makes a difference to the tone vs. modern. Same with caps.
Like CrazyNutz said, its a mix. Metal oxide in power rails and metal film or carbon film if its either in the bias supply or mounted on a socket. Not going to mount CC on a socket nor use it in the bias supply. The rest are CC and almost all are NOS Allen Bradley. The only non NOS CC I can remember is the 10k in the PI.
From what I've read the main spots for CC are the slope resistor and NFB and then diminishing returns after that. I was hesitant to use them for V1 plates due to noise but I've had that 110k V1b plate resistor for 20 years (military surplus/supply) just waiting for the right spot so I went with it. It measured 119k before I put it in.
As far as caps, the earlier in the circuit the more difference it makes. I wanted Mustards but finding 22n Mustards for a good price wasn't happening so I put Synergy Royal Mustards in the tone stack, 18n Mustards on V1a (bass channel that I never use) and PI input and 39n Mustards in power amp. V1b is a 2n2. The 100n on the other grid of the PI doesn't really matter since it is just bleeding all signal from that grid to ground so I just used an old gen Sozo.
Most of this is probably inaudible and at the price of potentially more noise. But it looks cool.
IMO, the caps that make the most difference are the mixer, treble, and bright cap. I found those NOS El Menco domino 560pF mica caps on ebay, I bought 10 of them. Then the Lemco 5000pF bright cap from a '76 50W that Shea modded. Glad I tried that thanks to CrazyNutz.
Oh yeah, I added the CDE caps to the V2a cathode and Presence because I saw that in the Suhr SL68. He doesn't have to use that extra cap on V2a but he chooses to...so I assume it matters. I didn't do a before/after test...sounded great before and after I added it. But once I go to the trouble I have reason to not want to remove it. I don't pretend to have dog ears and be able to hear all this stuff.