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  How to pick which brand of 6550 tubes to purchase
I have a pair of Ray Lumley M-100 amps. Have used two complete sets GE 6550 for close to twenty years. Need new tubes. Which tubes would you recommend to purchase? Any knowledge of the sound character of the different models. I like the accurate/neutral type of sound versus the too valve sound.
Dcaudio  (Threads | Answers | This Thread)

10-11-03
  Responses (1-8 of 8)
Click title to read one, or click date to read all below it.

10-12-03   For new production try svetlana's (c logo's). rugged and dep ...   Newbee

10-12-03   Those ge's are going to be hard to beat!!! however, if you ...   Rogerroger

10-12-03   Issue #19 of the vacuum tube valley journal has a review of ...   The_smokester

10-12-03: Zaikesman
Unless you don't play your amps very often, after close to 20 years of use on your old tubes, any of the better quality, compatible new production tubes out there will likely sound like a revelation compared to what you're hearing now (especially given around 40 hours or so of burn-in on the new set). I haven't tried them all, but the Svetlana 6550C's that Newbee mentions are quite smooth, extended, dimensional, clean'n'tight, and natural sounding, and have so far been perfectly durable for me. Nevertheless, I am also interested in trying either the Svet or JJ KT-88's at some point, which according to some might be a bit warmer, if not quite as tight and extended.
Zaikesman  (Reviews | Threads | Answers | This Thread)


10-12-03   Thanks everyone. particulary the recent article comparing 6 ...   Dcaudio

12-01-03: Zaikesman
OK, now I've had one of my Svet 6550C's fail before its time was due. Luckily, I happened to walk back into the room and glance over toward the rig just as the tube began lighting up bright orange inside - I was cranking pretty loud at the time. I ran over and killed the volume and the amps. The music had actually continued to play without distortion right up until I doused it, but after allowing things to cool down and swapping out the light-show tube, the output fuse was blown when I tried to turn the amp back on. Fortunately, a new fuse took care of the situation - there were no blown resistors or anything. Why the tube went however, at only about 10 months old, I cannot say.
Zaikesman  (Reviews | Threads | Answers | This Thread)


12-01-03   I just retubed my conrad-johnson premier 11a amp with the ne ...   Quincy

12-02-03   I have never been a fan of 6550s but just replaced svetlana ...   Khrys


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