Dan runs the tubes very conservatively in the SWL9.0SE, so I would say around 6000-8000 hours easily. You can use 5687, 7119, 7044, 6900 tubes in this unit.
I never tried the Bendix 6900 tubes because they are ultra expensive, (like $600+ per pair). They are claimed to be the best.
My favorites, (and I tried MANY), are in order:
1. Amperex HOLLAND 7119
2. Raytheon Red Label 5687
3. Tungsol 5687
4. Mullard USA 7119
5. Amperex USA 7119
5. GE or RCA 7044
I REALLY, REALLY liked the Amperex HOLLAND 7119. They were wonderful with a very open, smooth, warm, romantic sound. Not the end all, be all of detail, but very musical. My favorite tube by far.
I never tried the Bendix 6900 tubes because they are ultra expensive, (like $600+ per pair). They are claimed to be the best.
My favorites, (and I tried MANY), are in order:
1. Amperex HOLLAND 7119
2. Raytheon Red Label 5687
3. Tungsol 5687
4. Mullard USA 7119
5. Amperex USA 7119
5. GE or RCA 7044
I REALLY, REALLY liked the Amperex HOLLAND 7119. They were wonderful with a very open, smooth, warm, romantic sound. Not the end all, be all of detail, but very musical. My favorite tube by far.