Just did a little tweaking with my DC-5.
Here is what I came up with:
Re-biased the tubes, they were a little hot. JJ 6L6's.
Removed the 220k resistor from the Output Volume pot.
Replaced V1 & V2 w/JJ High Gains from Eurotubes.
Replaced V3 with a JJ 12AX7S.
Replaced V4 (most important for cleans) with an NOS Mullard.
Replaced V5 with a JJ 12AX7S.
Replaced V6 with a JJ 12AX7S.
And finally......
Celestion Gold Alnico speaker! This thing rocks. Just changing the speaker from the stock C90 opened this amp up like you wouldn't believe.
It had new tubes in it, but I had set it up for Bluesy clean tones for the last owner.
I like more of the Gary Moore, Santana, ZZ Top tones.
I tried some Blackplate Reissue Chinese 6V6's that sound absolutely incredible in Deluxe Reverbs. I really liked them, but the Gold speaker is only 8 ohms and I wouldn't be able to use an external cab since an 8 ohm speaker needs to be in the 4 ohm slot to sound right.
Now if I only had a 16 ohm (I guess they only come in 8 & 15) Gold, then I would keep the 6V6's in a heartbeat. They sounded very close to the 6L6's, but with a little more chime.
Gotta go. Gotta put it back together. Only have 1 hour left before it's too late to play! :lol: