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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

Showing 1 response by quincy

quincy
322 posts
 
I just retubed my Conrad-Johnson Premier 11A amp with the new Svetlanta (now a three letter logo) 6550 C tubes. Wow, what a difference over the stock GE's. The tubestore has them in stock, got a 'perfect quad', which means the tubes are all matched to one plate voltage (52 in my case). This is a great feature if you have to adjust gain. The old tubes were not shot, but C-J recommends changing them every 3 years of normal use.
Regards,
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