In Reply to: Playing chicken: who will pop first, the fuse or the tube? (nt) posted by Chris O on January 27, 2012 at 08:55:28:
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My output tubes are biased around 60mA and I have 100mA fast blow fuses in series with them. I have no proof but I am confident the tubes can withstand the current for the time it takes the fuse to blow.
I currently have a 2 stage DC coupled amp and previously used a 3 stage one for many years with no problems. I know, this isolated case proves nothing but I have no qualms about dc coupling. I use components well below their rated values and protect things with fuses.
In any case the improvement in sound is well worth any additional risk if there actually is any.
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Follow Ups
- the fuse - bwb 11:02:40 01/27/12 (4)
- "I have no proof but I am confident " That is the path to happiness, good for you! (nt) - Chris O 06:54:35 01/28/12 (3)
- Despite your sarcasm I am confident in my design. - bwb 08:14:33 01/28/12 (2)
- Slow blow fuses are not fast enough, fast blow sound like poop in the signal path. (nt) - Chris O 16:20:53 01/29/12 (1)
- then you must agree that poop sounds excellent because my system does. /nt - bwb 19:47:59 01/29/12 (0)