9
votes
2answers
224 views

Tradeoff between powering off and leaving tube amplifier on during breaks

Life span of a tubes(both pre-amp and power-amp tubes) depends on amp "usage" And/Or how often you turn on and turn off your amp. But I need some clarification definition on the word "usage" Because ...
5
votes
5answers
4k views

What's the best choice to get more gain out of a tube amplifier

The story behind this question: I got myself a nice little combo for my bedroom-workouts (related to playing guitar, of course :D ), a Blackstar HT1-R which is a lovely little 1 watt 2 channel ...
18
votes
4answers
935 views

When should I be concerned about calibrating the bias of vacuum tubes in an amplifier?

I think it would be useful to discuss the concept of bias as it pertains to guitar amplifiers. I have read some articles saying that you should always rebias your amplifier when you change the power ...
10
votes
2answers
2k views

What do the different tubes in an amplifier do?

Preamp vs Phase Inverter vs Reverb vs Power vs Rectifier. Many people get really, really confused when they try to understand anything about tubes. I spent a very long time myself trying to ...
21
votes
5answers
17k views

How do I know when it's time to change a tube on my amplifier?

I think this would be a wonderfully instructive question to people who are new to tube amplifiers. In short, how do I know that it's time to change a tube, and what's a good strategy for figuring out ...
22
votes
6answers
3k views

Why do tube-based guitar amplifiers sound so good?

Is it just a cultural thing ("they've always sounded that way") or is there some basis in music theory for this?