Try www.dougstubes.com I would recommend (2) JJ EL-84 power tubes. For the Preamp, I'd go with a Tung-Sol 12AX7 in the VI socket (The one furthest from the power tubes) V2- Sovtek LPS, V3 JJ-12AX7 You can call Doug or email him. He will tell you EXACTLY what you need. I bet his recommendations or close to mine.![]()
Try www.dougstubes.com I would recommend (2) JJ EL-84 power tubes. For the Preamp, I'd go with a Tung-Sol 12AX7 in the VI socket (The one furthest from the power tubes) V2- Sovtek LPS, V3 JJ-12AX7 You can call Doug or email him. He will tell you EXACTLY what you need. I bet his recommendations or close to mine.![]()
Another vote for Doug here. He's a great guy,tests EVERYTHING before it ships, has fair prices and he stands behind his stuff. It gets no better than Dougs!!
Try www.dougstubes.com I would recommend (2) JJ EL-84 power tubes. For the Preamp, I'd go with a Tung-Sol 12AX7 in the VI socket (The one furthest from the power tubes) V2- Sovtek LPS, V3 JJ-12AX7 You can call Doug or email him. He will tell you EXACTLY what you need. I bet his recommendations or close to mine.![]()
Mmmmm..gonna compare the Ruby EL34 to my =SED= EL34...
And then compare the new Mullard and Penta to my beloved Sovtek LPS.
I actually just ordered from Doug a few minutes ago! Very fair prices and great info. I went with a quad of TAD 6L6 and 6 Tungsol 12AX7s for my 5150II. Jerry at FJA mods turned me on to those tubes, it's a departure from the trusty JJ for the 5150 series, so we shall see how they sound! I will probably only deal with Doug for tubes!
thanks,If you have a few extra $$, pick up maybe 4 or 5 and then mix and match to your hearts content! That's the fun of tube amps! I'd probably get 2 Tung Sols, 1 chinese, 1 Sovtek LPS and 1 JJ. You never know which one you'll like in V1. That's where you'll notice the biggest difference.
It's advisable to rebias your amp after a power tube swap if you cannot guarantee that the new tubes are not the exact same rating as the old ones.
Preamp tubes require no bias or adjustment.
If your amp is "fixed bias" and has a bias adjustment, then you re-bias every time you change power tubes.
If your amp does not have a bias adjustment (which would probably be inside the amp so check the schematic or with a tech) or if it's cathode biased, then swap away :naughty:
FWIW I'm not convinced any tube rating system is going to help much - every tube tester is different and so is every amp.
I didn't pile on before, but Doug's Tubes has been a good source for me too.
Chip