Botch said:
I have one of them as I have the Doug's tube kit in my pre amp which is as follows:
Tung-Sol 12AX7
High Gain JJ ECC83
Penta 12AX7
Shuguang 12AX7 8th gen
Sovtek 12AX7 LPS
I can't remember which order they're currently in.
Ahh, I see. Well if I can recommend one thing to you, it would be to swap tubes out for something more suitable for your Recto. Doug's "tube kit" is supposed to be a sampler of different types of tubes because believe me, there are much better combinations out there for a Recto than those.
What I'd do is first get the Tung-Sol and Penta out of there; Chinese tubes, to me, add a lot of brightness and unnecessary fizz that doesn't work well with Rectifiers (or Bogners!). For the first 3 spots, JJs will work well, though I like to mix it up a little. I'd go with JJs or Electro-Harmonix - though EH aren't made as consistent - for V1 and V2. Your ears will tell you which should go where, or if you should just use two of a brand. For V3, I do like the darkness of the Sovtek LPS so I'd probably put one in there, but the JJs or EH tubes will work well here too. The effects loop, V4, I hardly even think about since I rarely use it, but the Penta would probably work best here - Penta tubes are well known to sound good in hi-fi circumstances, which is essentially what you want the loop to do. Phase inverter, V5, sounds great with the LPS again. I haven't played around with this spot too much, but I'd imagine a reissue Mullard would sound good here too.
A few things I've taken away is that in general, with Rectifiers, Russian and Eastern European tubes sound better than Chinese. The early stages - V1 and V2 - should be your clearer tubes with the most gain, while V3 you may want to tame it down (or not!). V4 should be clear to have the loop color the tone the least amount, and V5 must be chosen carefully because it will have a big impact on your tone.
Hope that helps!
And one more thing: I've never heard of anyone liking that Tung-Sol RI in their Rectifier. I'd get that tube out of there ASAP!